2025-09-19T15:48:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/butt-weld-equal-tees-asme-b16-9-a860-wphy-17546073486697472.html 2025-09-19T16:00:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/asme-b16-9-unequal-tee-astm-a420-wpl6-17546073487336448.html 2025-09-19T10:46:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/asme-b16-9-seamless-carbon-steel-equal-tee-dn-17546073512944640.html 2025-09-19T15:04:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/stainless-steel-equal-tee-ss316-ss-17546073516008448.html 2025-09-19T15:35:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/asme-b16-9-equal-tees-astm-a815-uns-s-17546073553429504.html 2025-09-19T10:03:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5dp-drill-pipe-17546073560638464.html 2025-09-19T15:08:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/seamless-tee-ss304-ss312-jis-b-17546073562899456.html 2025-09-19T09:44:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-oil-tubing-17546074114352128.html 2025-09-19T09:51:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-pipe-17546075713364992.html 2025-09-17T11:23:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-oil-casing-connection-methods-17558186711098368.html 2025-10-23T13:59:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-psl2-carbon-steel-line-pipe-17590189127197696.html 2025-10-23T14:42:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-couplings-octg-couplings-17590189140501504.html 2025-10-23T14:53:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/awwac213-2001-fbe-coated-pipe-17590189160031232.html 2025-10-23T15:54:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a691-alloy-welded-steel-pipe-17590189161047040.html 2025-10-23T17:11:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/e75-x95-g105-s135-drill-pipe-17590189176087552.html 2025-10-23T15:45:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/a333-a335-p5-p9-p11-p22-p91-din-17175-jis-g-17590189177693184.html 2025-10-23T15:01:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-epoxy-coated-pipe-17590189178020864.html 2025-06-04T14:52:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-3lpe-coated-pipes-17399826055996416.html 2025-07-26T19:49:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-standard-x60-seamless-steel-pipe-17459485735543808.html 2025-08-05T09:51:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-api-6d-ball-valve-17496050476475392.html 2025-08-05T09:24:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-608-standard-17496050492957696.html 2025-08-05T09:05:26+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-api-608-ball-valve-17496050502444032.html 2025-08-05T09:59:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-floating-ball-valve-17496050505769984.html 2025-08-05T10:19:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-two-piece-ball-valve-17496050508407808.html 2025-08-05T09:34:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-wcb-ball-valve-17496050511406080.html 2025-08-05T10:07:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-trunnion-mounted-ball-valve-17496050520679424.html 2025-08-05T10:25:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-3-piece-ball-valve-17496050533278720.html 2025-08-05T10:50:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-stainless-steel-ball-valve-used-for-17496050542945280.html 2025-08-05T10:43:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-a-2-piece-and-a-3-piece-bal-17496050561344512.html 2025-08-05T15:16:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-double-block-and-bleed-ball-valve-17496050565178368.html 2025-08-08T15:10:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-the-check-valve-made-of-17496050570585088.html 2025-08-08T11:49:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-purpose-of-the-silent-check-valve-17496050571011072.html 2025-08-05T15:10:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-dib-ball-valve-17496050580579328.html 2025-08-05T14:54:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-function-of-the-pneumatic-ball-val-17496050588296192.html 2025-08-08T15:31:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/electric-globe-valve-working-principle-17496050588722176.html 2025-08-08T15:00:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-ptfe-lined-check-valve-17496050593670144.html 2025-08-08T15:25:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-angle-globe-valve-17496050613429248.html 2025-08-08T11:54:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-function-of-the-check-valve-17496050622768128.html 2025-08-08T15:51:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a105-globe-valve-17496050630452224.html 2025-08-08T16:06:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-y-pattern-globe-valve-17496050631484416.html 2025-08-08T16:14:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/working-principle-of-y-type-globe-valve-17496050641691648.html 2025-08-08T16:00:22+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-api-6d-valve-17496050647884800.html 2025-08-08T14:36:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-advantages-of-a-tilting-disc-chec-17496050655044608.html 2025-08-08T15:43:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-are-globe-valves-made-of-17496050661991424.html 2025-08-08T14:29:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-tilting-disc-check-valve-17496050680144896.html 2025-08-05T14:47:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-purpose-of-a-3-piece-ball-valve-17496050680652800.html 2025-08-08T14:22:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-stainless-steel-swing-check-valve-17496050694628352.html 2025-08-08T14:13:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-working-principle-of-a-check-valve-17496050702967808.html 2025-08-05T10:58:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-3-way-ball-valve-17496050732246016.html 2025-08-12T17:27:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-t-type-three-way-ball-valve-17529614169908224.html 2025-08-12T16:33:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-metal-hard-seal-and-soft-se-17529614173987840.html 2025-08-12T17:22:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/function-of-the-pneumatic-three-way-valve-17529614184752128.html 2025-08-12T17:16:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/how-does-a-3-way-ball-valve-work-17529614201562112.html 2025-08-12T16:25:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-metal-seated-ball-valve-17529614201840640.html 2025-08-12T17:19:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/installation-of-pneumatic-three-way-ball-valve-17529614208689152.html 2025-08-12T16:44:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-function-of-the-ball-valve-17529614232593408.html 2025-08-12T16:42:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-seat-material-for-ball-valves-17529614264116224.html 2025-08-12T17:37:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-working-principle-of-electric-glob-17529614275388416.html 2025-08-26T09:51:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/manufacturing-process-of-api-5ct-casing-pipe-17529614277452800.html 2025-08-12T17:40:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/tips-for-valve-installation-17529614281892864.html 2025-08-12T16:55:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-used-for-high-temperature-val-17529614284432384.html 2025-08-12T17:03:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-materials-are-used-in-valves-for-high-tem-17529614290215936.html 2025-08-12T17:33:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/six-selection-principles-for-valve-electric-ac-17529614346888192.html 2025-08-26T14:22:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/color-codes-for-api-5ct-casing-and-tubing-17529614388962304.html 2025-08-26T15:24:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/casing-manufacturing-process-17529614394811392.html 2025-08-25T17:02:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-psl1-line-pipe-17529614400119808.html 2025-08-25T17:16:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-psl2-line-pipe-17529614414717952.html 2025-08-26T14:41:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/specification-of-casing-pup-joints-17529614435755008.html 2025-08-26T10:17:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/mechanical-properties-of-api-5ct-tubing-17529614468998144.html 2025-08-26T11:28:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-line-pipe-coatings-17529614471488512.html 2025-08-12T17:59:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/taboos-for-installing-heating-valves-17529614491132928.html 2025-08-26T17:10:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/function-of-drill-pipe-17529614491280384.html 2025-08-26T15:01:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-product-process-inspection-17529614495212544.html 2025-08-26T16:25:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-seamless-steel-pipe-dimensions-17529614518952960.html 2025-08-26T16:31:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/psl1-vs-psl-17529614535779328.html 2025-08-12T17:51:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/valve-inspection-and-test-items-17529614538138624.html 2025-08-25T16:54:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5dp-drill-pipe-specifications-17529614546052096.html 2025-08-26T09:32:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/chemical-composition-of-api-5ct-oil-tubing-17529614550885376.html 2025-08-26T17:01:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/dimensions-tolerance-for-api-5l-seamless-pipe-17529614556668928.html 2025-08-26T16:40:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/relationship-between-casing-burst-pressure-an-17529614574461952.html 2025-08-26T17:40:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/functions-and-applications-of-pup-joint-17529614582391808.html 2025-08-26T17:26:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/are-thread-rolling-mandatory-for-drill-pipes-17529614585062400.html 2025-08-26T17:17:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/drill-pipe-structure-17529614603297792.html 2025-08-25T16:49:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/types-of-ends-for-api-5ct-octg-tubing-17529614616486912.html 2025-08-26T10:49:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/dimensions-and-sizes-of-api-line-pipe-17529614621320192.html 2025-08-26T15:39:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/erw-api-casing-specification-17529614624351232.html 2025-08-25T17:24:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-line-pipe-17529614639211520.html 2025-08-27T09:16:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/connections-of-casing-pipe-17529614705943552.html 2025-08-27T10:16:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-function-of-drill-pipe-17529614722622464.html 2025-08-26T11:04:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/chemical-component-of-api-5l-line-pipe-17529614756766720.html 2025-08-27T09:26:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/upset-of-drill-pipe-17529614775477248.html 2025-08-27T10:09:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-causes-of-drill-pipe-failure-how-17529614782407680.html 2025-08-26T17:52:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/chemical-composition-of-api-5l-grade-x65q-psl-17529614785635328.html 2025-08-27T10:36:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/applications-of-of-drill-pipe-17529614801544192.html 2025-08-26T18:03:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-iso-3183-gr-l290-steel-ppipe-17529614870946816.html 2025-08-27T11:00:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/high-strength-drill-pipe-17529614874272768.html 2025-08-27T11:13:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/introduction-to-primary-drill-pipes-17529614904468480.html 2025-08-27T11:51:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/high-toughness-center-cable-through-drill-pipe-17529614931092480.html 2025-08-27T10:22:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/main-structural-components-of-drill-pipe-17529614938776576.html 2025-08-27T11:43:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/mwd-drill-pipe-17529614964139008.html 2025-08-27T11:31:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/spiral-central-cable-drilling-pipe-17529614966236160.html 2025-08-27T14:21:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/wireless-mwd-drill-pipe-17529614980031488.html 2025-08-27T14:42:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/square-new-type-spiral-drill-pipe-high-press-17529615034278912.html 2025-08-27T14:33:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/mwd-directional-drill-pipe-17529615068931072.html 2025-08-27T11:58:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/high-toughness-drill-pipe-17529615071093760.html 2025-08-27T14:50:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/groove-drill-pipe-17529615072142336.html 2025-08-27T15:09:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-ribbed-drill-pipe-17529615118771200.html 2025-08-26T15:45:29+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-tubing-specification-17529615190516736.html 2025-08-27T15:33:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/triangular-drill-pipe-17529615317132288.html 2025-08-27T15:18:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/triangular-spiral-groove-drill-pipe-17529615374885888.html 2025-08-26T16:04:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/mechanical-properties-of-api-drill-pipe-17529615416943616.html 2025-08-25T16:38:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-steel-tubing-list-17529615431689216.html 2025-08-25T16:28:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-steel-casing-list-17529615469159424.html 2025-08-27T15:43:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-spiral-drill-pipe-17529615529026560.html 2025-09-09T16:23:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/9-5-8-inch-pipe-couplings-api-5ct-j55-carbon-17529615564301312.html 2025-09-14T09:04:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-drill-pipe-sizes-weight-list-17529616401081344.html 2025-09-08T18:02:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/processing-of-api-5ct-oil-casing-ends-17529630993671168.html 2025-09-14T09:26:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/drill-pipe-steel-grade-and-strength-17529631004419072.html 2025-09-14T09:26:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-grade-j55-pipe-coupling-psl1-2-inch-17529631101150208.html 2025-09-14T09:26:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/specification-of-api-line-pipe-17529631103427584.html 2025-09-14T09:26:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-psl1-coupling-2-3-8-inch-eue-thr-17529631137899520.html 2025-09-14T09:26:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-pipe-couplings-api-5ct-grade-n-17529631144174592.html 2025-09-14T09:26:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-coupling-j55-dn76-x-dn77-eue-17529631144764416.html 2025-09-14T09:26:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-pipe-couplings-carbon-steel-grade-n-17529631153464320.html 2025-09-14T09:26:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/casing-and-tubing-coupling-h40-j55-k55-n-17529631156511744.html 2025-09-09T17:55:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-coupling-2-7-8-inch-eue-17529631183643648.html 2025-09-14T09:26:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/j55-casing-coupling-api-5ct-dn60-eu-17529631185773568.html 2025-09-14T09:26:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-coupling-j55-dn76-eue-17529631224931328.html 2025-09-14T09:26:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-psl1-pipe-coupling-carbon-steel-17529631253865472.html 2025-09-14T09:26:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-k55-n80-l80-btc-casing-coupling-17529631254832128.html 2025-08-26T15:32:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/seamless-casing-specification-17529633578869760.html 2025-09-14T09:26:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-tubing-coupling-api-5ct-psl1-j-17529634100519936.html 2025-08-26T16:15:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/drill-pipe-dimensional-range-and-performance-p-17529656828339200.html 2025-09-17T15:17:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-j55-casing-pipe-17546034102707200.html 2025-09-17T10:53:37+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/sizes-weight-of-api-5dp-drill-pipe-17546036094657536.html 2025-02-17T09:40:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-oil-steel-pipe-17242867834627072.html 2025-02-20T10:05:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5dp-17242867865609216.html 2025-02-19T10:11:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-5l-tube-and-17242867869885440.html 2025-02-19T10:22:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x-17242867875816448.html 2025-02-19T10:01:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-17242867879355392.html 2025-02-20T10:18:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-drill-pipe-grades-17242868027171840.html 2025-02-20T10:36:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-x-17242868037362688.html 2025-02-21T10:50:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-api-5l-x-17260031106540544.html 2025-02-25T14:12:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-x52-pipe-17260031116108800.html 2025-02-21T10:56:13+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-j55-vs-k55-casing-pipe-17260031117468672.html 2025-02-24T10:52:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api5lx65-material-17260031119418368.html 2025-02-26T14:26:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grb-pipeline-pipe-17260031121417216.html 2025-02-28T10:35:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l290-line-pipe-17260031126135808.html 2025-02-24T10:44:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x70-material-17260031130133504.html 2025-02-21T10:41:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-x65-line-pipe-17260031131460608.html 2025-02-24T10:59:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-5l-x65-psl-17260031132394496.html 2025-02-28T10:36:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l240-pipeline-17260031139128320.html 2025-02-26T14:18:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x42-pipe-17260031141602304.html 2025-02-25T14:01:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-5l-x52-pipe-17260031142519808.html 2025-03-03T10:45:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-l320-line-pipe-17260031151711232.html 2025-03-03T10:56:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/material-of-l390-pipeline-17260031152153600.html 2025-02-27T10:16:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-x42-smls-pipe-and-ap-17260031153185792.html 2025-02-27T10:37:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-x52-and-api-5l-x56-p-17260031154316288.html 2025-02-26T14:14:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-x46-pipe-17260031157298176.html 2025-03-06T13:43:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-main-materials-of-api-5l-pipeline-17260031160476672.html 2025-02-27T10:31:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-x42-seamless-pipe-an-17260031160673280.html 2025-03-05T11:05:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-x80-grade-pipe-17260031161508864.html 2025-03-04T11:32:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-l485-line-pipe-and-l290-lin-17260031163900928.html 2025-03-05T11:19:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api5lx80-tube-and-x70-tube-17260031167505408.html 2025-03-04T11:21:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-l415-line-pipe-17260031175238656.html 2025-02-26T14:07:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-api-5l-x56-pipeline-pi-17260031175746560.html 2025-03-06T11:42:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/the-chemical-composition-of-api-5l-x80-17260031182136320.html 2025-03-04T11:27:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-l485-line-pipe-17260031192687616.html 2025-02-25T14:08:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-5l-grb-pipe-17260031225291776.html 2025-03-06T13:35:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-composition-of-api-x-17260031382873088.html 2025-03-03T10:51:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-material-of-l-17260072286675968.html 2025-02-28T10:26:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-iso-3183-pipeline-17260072304223232.html 2025-03-05T11:00:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-x70-line-pipe-17260072324375552.html 2025-12-18T12:49:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-psl2-lsaw-carbon-welded-steel-pi-17664327332488192.html 2025-12-18T12:49:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-steel-line-pipe-17664327349085184.html 2025-10-24T17:00:13+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-oil-and-gas-pipe-3-layer-pe-coated-anticor-17664327372301312.html 2025-12-18T12:49:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gas-spiral-saw-line-pipe-17664327408657408.html 2025-12-18T12:49:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-saw-water-line-pipe-17664327418323968.html 2025-12-18T12:49:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-3lpe-anti-corrosion-coated-line-pipe-17664327449764864.html 2025-12-18T12:49:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/3-layers-polyethylene-external-coating-tube-17664327490003968.html 2025-12-18T12:50:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-pipe-line-oil-gas-line-pipe-lsaw-st-17664327541859328.html 2025-12-18T12:50:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-octg-tubing-pipe-17664327546512384.html 2025-12-18T12:49:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/asme-sa106-sa53-line-pipe-17664327559242752.html 2025-10-24T16:39:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-octg-steel-line-pipe-17664327563764736.html 2025-12-18T12:50:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/sy-t5037-2000-gb-t9711-1997-api-5l-grb-fbe-coa-17664327573955584.html 2025-10-24T14:26:26+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/octg-steel-drill-pipe-17664327581328384.html 2025-12-18T12:49:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/din-30670-3pe-coated-carbon-steel-pipe-17664327606215680.html 2025-12-18T12:50:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/3pe-coating-anti-corrosion-insulation-steel-tu-17664327679386624.html 2025-12-18T12:50:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-line-pipe-used-in-oil-and-gas-industrie-17664327688233984.html 2025-12-18T12:50:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-astm-a500-astm-a252-erw-building-and-17664327715513344.html 2025-12-18T12:50:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/external-internal-epoxy-anti-corrosion-steel-p-17664327724164096.html 2025-12-18T12:50:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/a252-sa252-erw-piling-pipe-17664327727784960.html 2025-12-18T12:50:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-astm-a53-a252-a500-hfw-steel-pipe-17664327763125248.html 2025-12-18T12:50:26+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/din-30670-3pe-coated-steel-pipe-17664327763846144.html 2025-12-18T12:50:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-astm-a53-astm-a178-astm-a500-erw-ste-17664327782589440.html 2025-12-18T12:50:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-oil-and-gas-pipeline-17664327839572992.html 2025-12-18T12:49:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-3183-erw-steel-line-pipe-17664327880827904.html 2025-12-18T12:49:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/natural-oil-api-5l-line-pipe-17664327881204736.html 2025-12-18T12:50:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-octg-casing-and-tubing-17664327883858944.html 2025-12-18T12:50:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-psl2-saw-steel-pipe-17664327903159296.html 2025-12-18T12:50:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-21809-1-din-30670-gost-31448-3pe-anti-co-17664327971873792.html 2025-12-18T12:49:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/n80-oil-casing-seamless-steel-pipe-17664328065393664.html 2025-12-18T12:50:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a252-api-5l-gb-t3091-longitudinal-subme-17664328145740800.html 2025-12-18T12:50:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-astm-a500-astm-a252-construction-stru-17664328170349568.html 2025-12-18T12:50:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a53-astm-a106-jis-3454-jis-3455-tube-for-17664328221516800.html 2025-12-18T12:51:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/en-10216-seamless-steel-pipe-for-pressure-purp-17664328283022336.html 2025-12-18T12:49:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/awwa-c200-spiral-steel-pipe-17664328408097792.html 2025-10-27T14:24:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/din1629-en10210-en10216-a53-structural-steel-p-17664328490411008.html 2025-12-18T12:51:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a335-a213-din17175-high-pressure-and-temp-17664328618779648.html 2025-10-27T14:56:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/din30678-3pp-polypropylene-coated-erw-steel-17664328662885376.html 2025-10-27T14:42:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a519-en10297-1-mechanical-tube-17664328721294336.html 2025-10-27T15:04:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/3lpe-coating-pipe-17664328818795520.html 2025-10-27T15:16:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a234-a403-a420-bend-17664329212290048.html 2025-10-24T16:19:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-l80-oil-casing-pipes-17664329390810112.html 2025-10-27T15:39:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a234-a420-a860-a403-elbow-17664332366930944.html 2025-10-27T16:07:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/ansi-b16-9-b16-28-reducer-17664332467463168.html 2025-10-27T16:47:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/s355j2h-s275j2h-st37-st52-hot-rolled-carbon-s-17664332531983360.html 2025-10-27T15:28:22+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a234-a420-a860-a403-cap-17664332560212992.html 2025-10-27T16:59:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/s355j2h-s275j2h-st37-st52-cold-drawn-carbon-s-17664332570928128.html 2025-10-27T17:16:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/a519-seamless-carbon-steel-pipe-for-high-tempe-17664332575450112.html 2025-10-27T17:24:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gr-b-large-diameter-low-carbon-steel-pi-17664332686091264.html 2025-10-28T09:42:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-spec-5ct-j55-k55-n80-l80-p110-k55-seamless-17664332785132544.html 2025-10-27T17:51:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x52-mild-steel-piping-for-fluid-pipe-17664332817982464.html 2025-10-27T17:43:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a179-astm-a214-round-precision-seamless-c-17664332827501568.html 2025-10-28T13:52:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-sa519-4140-4130-seamless-carbon-tube-for-17664332882568192.html 2025-10-27T17:32:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl1-smls-pipe-17664332900393984.html 2025-11-20T09:30:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-api-5l-made-of-17664332901082112.html 2025-10-31T16:29:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-coiled-tubing-17664332918612992.html 2025-10-28T11:04:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a213-seamless-alloy-steel-boiler-superhe-17664332924756992.html 2025-11-20T09:34:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-astm-a106-grade-b-equivalent-to-api-5l-17664332949300224.html 2025-10-28T11:58:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a335-p9-p11-t22-t91-seamless-ferritic-all-17664332958557184.html 2025-10-27T16:19:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a234-a420-a403-a860-tee-17664332959228928.html 2025-10-28T10:01:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a106-gr-b-seamless-carbon-steel-pipe-for-17664332983837696.html 2025-11-20T09:46:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-and-astm-a333-pipe-17664332993160192.html 2025-10-28T11:39:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a333-low-temperature-steel-pipe-17664333008856064.html 2025-11-20T09:40:37+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-grade-b-and-x42-pipe-17664333013525504.html 2025-11-20T09:37:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-hardness-of-api-5l-grade-b-17664333015524352.html 2025-10-28T10:12:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-sa179-seamless-cold-drawn-low-carbon-stee-17664333017998336.html 2025-10-28T10:48:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-sa210-seamless-medium-carbon-boiler-and-s-17664333024748544.html 2025-10-28T09:53:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a53-gr-b-black-and-hot-dipped-zinc-coated-17664333035561984.html 2025-11-20T09:52:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-spec-5l-psl-2-pipe-17664333039035392.html 2025-11-20T09:56:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-wall-thickness-of-api-5l-x42-pipe-17664333046866944.html 2025-11-20T10:03:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-x46-pipe-17664333087663104.html 2025-11-20T10:10:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-x52-material-17664333113107456.html 2025-11-20T11:02:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-h40-material-17664333125346304.html 2025-11-20T11:41:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-l245-pipe-made-of-17664333126935552.html 2025-11-20T10:28:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x65-material-grade-17664333133063168.html 2025-11-20T10:38:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-does-api-5ct-mean-17664333147497472.html 2025-11-20T10:34:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-x70-material-equivalent-to-17664333154313216.html 2025-11-20T10:20:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/is-5l-x56-a-pipe-17664333159244800.html 2025-11-20T11:12:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-l80-and-j-17664333164356608.html 2025-11-20T11:22:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-k55-material-17664333173498880.html 2025-11-20T11:31:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-api-standard-for-drill-pipes-17664333180478464.html 2025-11-20T15:20:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-p110-pipe-17664333252731904.html 2025-10-28T10:39:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-sa192-seamless-carbon-steel-boiler-tubes-17664333274555392.html 2025-11-20T15:46:26+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-casing-17664333275636736.html 2025-11-20T15:39:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l80-casing-17664333300179968.html 2025-11-20T14:30:13+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x46-psl-1-api-5l-x46-psl-2-p-17664333303718912.html 2025-10-28T09:28:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-spec-5l-psl1-psl2-gr-b-x42-46-52-56-65-pip-17664333316137984.html 2025-11-20T15:30:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-t95-steel-17664333343745024.html 2025-11-20T14:35:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x42-psl1-psl2-pipe-17664333345465344.html 2025-11-20T10:24:13+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-does-x60-mean-17664333356114944.html 2025-11-20T16:01:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-properties-of-api-5l-grade-x65-ma-17664333357491200.html 2025-11-20T16:07:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-b-pipe-specification-17664333357671424.html 2025-11-20T13:58:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x65-pipe-17664333371335680.html 2025-11-20T16:15:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-wall-thickness-of-api-5l-x65-pipe-17664333404873728.html 2025-11-20T16:24:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-materials-are-used-in-api-5ct-17664333456974848.html 2025-11-20T15:57:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x60-pipe-specification-17664333494363136.html 2025-10-27T16:38:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-carbon-steel-seamless-pipe-17664333519021056.html 2025-11-20T14:04:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x60-linepipe-17664333583213568.html 2025-11-20T15:07:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-x80-psl2-line-pipe-17664333600891904.html 2025-11-20T14:22:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x52-psl1-psl2-pipe-17664333619766272.html 2025-11-20T14:10:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-x56-psl1-psl-2-line-pipe-17664333634642944.html 2025-10-28T14:06:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/din17175-seamless-steel-tube-for-elevated-temp-17664333665313792.html 2025-11-20T14:42:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-casing-tubing-17664333850862592.html 2025-11-20T13:51:26+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x70-pipe-17664334122427392.html 2025-10-28T11:23:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a333-gr-6-seamless-and-welded-carbon-and-17664334263755776.html 2025-10-24T14:47:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/j55-steel-casing-pipe-17664334329701376.html 2025-10-24T17:06:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/ipn8710-3pe-larger-diameter-anticorrosion-spir-17664334345053184.html 2025-10-24T16:33:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x52-saw-pipe-17664334641308672.html 2025-10-24T16:26:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x65-saw-pipe-17664341093327872.html 2025-12-18T13:06:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/ansi-b16-5-ansi-b16-48-flange-17664341204902912.html 2025-12-18T13:15:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-round-carbon-steel-smls-pipe-17664350489797632.html 2025-12-27T06:35:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-size-is-the-casing-in-an-oil-well-17676691670017024.html 2025-12-27T06:35:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-tubing-17676691679437824.html 2025-12-27T06:35:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x42-pipe-specification-17676691681354752.html 2025-12-27T06:35:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-5l-gr-b-psl-17676691698410496.html 2025-12-27T06:35:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-psl2-material-17676691704144896.html 2025-12-27T06:35:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-composition-of-x65-steel-17676691723756544.html 2025-12-27T06:35:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-pressure-rating-of-api-5l-x52-pipe-17676691725444096.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-line-pipe-in-the-oil-and-gas-industry-17676691730015232.html 2025-12-27T06:35:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-tubing-in-oil-and-gas-17676691735356416.html 2025-12-27T06:35:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-x60-material-17676691742712832.html 2025-12-27T06:35:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-oil-casing-17676691744203776.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-length-of-r1-tubing-17676691752657920.html 2025-12-27T06:35:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-steel-17676691765453824.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-api-standard-for-drill-pipe-inspec-17676691772728320.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-used-for-oil-well-casing-17676691782394880.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-properties-of-x56-material-17676691783754752.html 2025-12-27T06:35:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-strength-of-a-drill-pipe-17676691805447168.html 2025-12-27T06:35:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-3pe-coating-17676691814736896.html 2025-12-27T06:35:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-temperature-range-for-api-5l-gr-b-17676691815392256.html 2025-12-27T06:35:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-psl1-material-17676691818718208.html 2025-12-27T06:35:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-coupling-in-a-pipe-17676691822453760.html 2025-12-27T06:35:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-api-coupling-17676691824632832.html 2025-12-27T06:35:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x42-specification-17676691829400576.html 2025-12-27T06:35:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-octg-in-oil-and-gas-17676691833365504.html 2025-12-27T06:35:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-carbon-steel-seamless-pipe-17676691844834304.html 2025-12-27T06:35:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-components-of-coiled-tubing-17676691854173184.html 2025-12-27T06:35:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-type-of-coating-is-used-on-pipelines-17676691854615552.html 2025-12-27T06:35:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-and-api-5l-17676691870491648.html 2025-12-27T06:35:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-carbon-equivalent-17676691873129472.html 2025-12-27T06:35:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-drill-pipe-17676691878306816.html 2025-12-27T06:35:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-most-common-drill-pipe-size-17676691879535616.html 2025-12-27T06:35:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x70-equivalent-astm-17676691880010752.html 2025-12-27T06:35:51+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-pup-joint-17676691882107904.html 2025-12-27T06:35:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-coil-tubing-oil-and-gas-17676691884876800.html 2025-12-27T06:35:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-b-used-for-17676691900638208.html 2025-12-27T06:36:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-tensile-strength-of-api-5l-grade-b-17676691910321152.html 2025-12-27T06:35:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grb-seamless-and-welded-line-pipe-17676691934848000.html 2025-12-27T06:35:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x52-equivalent-to-17676691941630976.html 2025-12-27T06:35:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-x42-psl2-carbon-steel-seamless-pi-17676691967403008.html 2025-12-27T06:36:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-erw-pipe-17676691972695040.html 2025-12-27T06:36:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-pressure-rating-for-grade-b-pipe-17676691981034496.html 2025-12-27T06:35:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-fbe-pipe-coating-17676691992372224.html 2025-12-27T06:36:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/how-thick-is-api-5l-grade-b-pipe-17676691996500992.html 2025-12-27T06:35:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/can-you-use-galvanized-pipe-for-oil-17676691997369344.html 2025-12-27T06:35:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-differences-between-api-5l-psl1-p-17676692002087936.html 2025-12-27T06:35:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-standards-for-pipeline-coating-17676692007330816.html 2025-12-27T06:36:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-seamless-and-erw-pipe-17676692023976960.html 2025-12-27T06:35:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl2-seamless-pipe-17676692028843008.html 2025-09-16T14:49:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/casing-couplings-api-5ct-j55-3-1-2-in-eue-8r-17546033633174528.html 2025-09-16T14:36:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-coupling-l80-dn76-eue-17546033634337792.html 2025-09-16T15:11:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/9-2-lb-pipe-coupling-3-5-inch-api-l-17546033656587264.html 2025-09-16T14:41:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-tube-coupling-dn240-ltc-end-17546033656603648.html 2025-09-16T15:16:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/3-5-in-pipe-coupling-api-l80-9-2-lb-ft-17546033657799680.html 2025-09-16T15:03:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/red-painting-pipe-coupling-api-l-17546033657816064.html 2025-09-16T16:41:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-pup-joints-2-7-8-5-1-2-in-17546033669760000.html 2025-09-16T15:41:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-coupling-j55-dn76-eu-x-50-lp-17546033682654208.html 2025-09-16T15:46:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/j55-casing-coupling-api-5ct-2-7-8in-eue-8rd-17546033685226496.html 2025-09-16T16:20:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-insulation-joint-api-5l-x65-17546033687979008.html 2025-09-16T16:47:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-grade-n80-pup-joint-2-7-8-inch-10-f-17546033692304384.html 2025-09-16T16:16:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/alloy-steel-pup-joint-api-5ct-p110-5-in-17546033698202624.html 2025-09-16T16:55:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-pup-joint-api-5ct-n80-joint-17546033700316160.html 2025-09-16T15:06:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/pipe-coupling-api-5ct-2-7-8-inch-n-17546033705116672.html 2025-09-17T09:16:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-isolation-joint-api-5l-x65-psl-17546033708180480.html 2025-09-17T09:31:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-seamless-pup-joint-grade-j55-2-7-8-i-17546033716126720.html 2025-09-16T17:00:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-isolation-joint-api-5l-x52-psl-17546033719010304.html 2025-09-17T15:02:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-n80-1-casing-pipe-17546033732510720.html 2025-09-16T15:52:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/casing-coupling-n80-api-5ct-5-1-2-inch-bc-17546033743586304.html 2025-09-16T16:28:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-pup-joints-api-5ct-j55-2-7-8-in-17546033753760768.html 2025-09-16T15:58:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/asme-b31-8-insulation-joints-api-5l-x65-8-in-17546033756840960.html 2025-09-17T09:40:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/j55-pup-joints-api-5ct-k55-n80-l80-pup-joint-17546033759773696.html 2025-09-17T09:50:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/12-inch-insulating-joint-api-5l-x52-1500-lb-17546033769260032.html 2025-09-17T10:37:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-k55-n80-l80-1-l80-9cr-l80-13cr-p-17546033778304000.html 2025-09-17T11:49:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-r95-octg-17546033785201664.html 2025-09-17T11:07:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/technical-information-of-api-coiled-tubing-17546033792214016.html 2025-09-16T15:29:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/casing-crossover-coupling-api-5ct-n-17546033792738304.html 2025-09-17T14:48:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-q125-casing-and-tubing-17546033795556352.html 2025-09-17T14:20:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-c90-1-octg-oil-tubing-17546033799619584.html 2025-09-17T11:58:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-p110-oil-tubing-17546033804190720.html 2025-09-17T15:47:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x65-psl1-psl2-pipeline-17546033810072576.html 2025-09-17T15:27:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-h40-casing-pipe-17546033810121728.html 2025-09-17T11:33:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-r95-oil-tubing-17546033817510912.html 2025-09-16T15:23:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/crossover-casing-couplings-n80-api-5ct-17546033824408576.html 2025-09-17T14:29:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-l80-1-octg-oil-tubing-17546033850524672.html 2025-09-17T14:42:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-n80-q-octg-oil-tubing-17546033851311104.html 2025-09-17T16:30:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x70-psl1-psl2-pipeline-17546033861665792.html 2025-09-17T17:00:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x60-psl1-psl2-pipeline-17546033867449344.html 2025-09-17T17:06:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x56-psl1-psl2-pipeline-17546033867580416.html 2025-09-17T15:34:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-psl2-tube-17546033887110144.html 2025-09-17T16:43:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grb-psl1-psl2-lsaw-line-pipe-17546033904460800.html 2025-09-17T15:09:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-gr-k55-casing-pipe-17546033921008640.html 2025-09-17T17:16:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x46-psl1-psl2-pipeline-17546033934640128.html 2025-09-17T17:21:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x52-psl1-psl2-pipeline-17546033949959168.html 2025-09-17T16:23:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-3183-gr-l320-l320n-l320q-l320m-steel-pipe-17546033992705024.html 2025-09-17T15:58:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-3183-gr-l290-l290n-l290q-l290m-pipeline-17546033993393152.html 2025-09-17T16:16:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-3183-gr-l390-l390n-l390q-l390m-steel-pipe-17546033995785216.html 2025-09-17T16:53:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl1-psl2-pipeline-17546033997734912.html 2025-09-17T16:08:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/iso-3183-gr-l360-l360n-steel-pipe-17546034035713024.html 2025-12-27T06:36:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-seamless-and-welded-steel-pipes-17676692038460416.html 2025-12-27T06:36:22+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-seamless-and-welded-steel-line-pipe-17676692040950784.html 2025-10-23T15:30:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-jis-gb-din-en-galvanized-steel-pipe-17590189184345088.html 2025-10-23T17:01:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-psl1-psl2-j55-k55-n80-1-n80-q-casing-17590189191488512.html 2025-10-23T15:12:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/ansi-jis-din-en-iso-din-can-csa-nfa-3lpe-c-17590189201744896.html 2025-10-23T16:04:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/a312-a213-a269-b673-b674-b677-stainless-steel-17590189217375232.html 2025-10-23T14:28:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5dp-e75-x95-g105-s135-drill-pipe-17590189217801216.html 2025-10-23T16:40:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a554-asme-sa554-stainless-rectangular-ho-17590189227828224.html 2025-10-23T17:21:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-grades-j-55-n-80-l-80-pup-joint-17590189231399936.html 2025-10-23T16:23:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/astm-a554-astm-a249-astm-a312-din11850-jis-g-17590189236528128.html 2025-10-23T16:54:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-spec-5ct-iso13680-tubing-17590189268493312.html 2025-10-23T16:15:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/a269-a249-a270-din11850-stainless-steel-welded-17590189358507008.html 2025-10-23T14:11:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-casing-and-tubing-steel-pipe-17590189410886656.html 2025-10-23T17:31:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-t95-casing-and-tubing-17590189498754048.html 2025-10-23T17:37:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-n80-casing-and-tubing-17590189552280576.html 2025-10-23T17:47:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-j55-casing-and-tubing-17590226514453504.html 2025-10-27T04:45:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-l80-casing-and-tubing-17590226549842944.html 2025-10-27T04:45:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/bs-en-iso-11960-nf-m87-207-api-5ct-couplings-17590226621768704.html 2025-12-27T06:36:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl1-welded-pipe-17676692065838080.html 2025-12-27T06:36:44+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gr-b-psl-2-smls-carbon-steel-pipe-17676692093019136.html 2025-12-27T06:36:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-erw-oil-pipe-17676692098376704.html 2025-12-27T06:36:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-l290-psl2-seamless-steel-pipe-17676692124804096.html 2025-12-27T06:36:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/x42-welded-line-pipe-17676692135502848.html 2025-12-27T06:36:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-x42-pipe-chemical-composition-and-17676692141958144.html 2025-12-27T06:36:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl-1-welded-cs-line-pipes-17676692145185792.html 2025-12-27T06:36:29+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-x42-psl1-erw-pipe-17676692152017920.html 2025-12-27T06:36:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-or-l290-line-pipe-17676692182541312.html 2025-12-27T06:35:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-specification-pdf-17676692232365056.html 2025-12-27T06:36:49+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl1-carbon-steel-seamless-pipes-17676692266836992.html 2025-12-12T09:52:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-line-pipe-17676692268475392.html 2025-12-27T06:36:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-x42-high-yield-pipe-17676692269343744.html 2025-12-27T06:36:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-x42-line-pipe-17676692275340288.html 2025-12-27T06:36:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-x42-carbon-steel-line-pipes-17676692285629440.html 2025-12-27T06:36:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-pipe-specifications-17676692310533120.html 2025-12-10T14:41:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-equivalent-to-astm-17676692346774528.html 2025-12-27T06:36:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-seamless-carbon-steel-line-pipe-17676692353246208.html 2025-12-18T12:49:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-x42-x52-x56-x60-x65-x70-pipe-17664327199646720.html 2025-12-18T12:49:58+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5ct-octg-casing-pipe-17664327235544064.html 2025-12-18T12:49:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-erw-line-pipe-17664327273047040.html 2025-12-18T12:49:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/l245-low-carbon-line-pipe-17664327278109696.html 2026-01-22T10:08:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-j55-material-17713711639585792.html 2026-01-22T10:08:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l80-type-1-octg-17713711808766976.html 2026-01-22T10:08:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-grades-of-api-5ct-17713711809422336.html 2026-01-22T10:09:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-specification-of-api-5ct-n80-octg-17713711849923584.html 2026-01-22T10:08:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-differences-between-l80-1-l80-3c-17713711852807168.html 2026-01-22T10:08:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-composition-of-api-5ct-j55-octg-17713711877350400.html 2026-01-22T10:08:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-tubing-and-casi-17713711889654784.html 2026-01-22T10:08:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-j55-pipe-17713711909217280.html 2026-01-22T10:08:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-coupling-17713711939331072.html 2026-01-22T10:08:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-p110-pipe-made-of-17713711979029504.html 2026-01-22T10:08:29+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-c90-casing-and-tubing-17713712115966976.html 2026-01-19T14:13:50+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-p110-casing-17713719727039488.html 2026-01-19T14:26:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-pup-joint-17713719811859456.html 2026-01-19T14:45:52+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-api-grades-of-drill-pipes-17713719841235968.html 2026-01-19T15:15:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l290-pipe-17713719847609344.html 2026-01-19T15:25:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-material-grade-l450-line-pipe-17713719864501248.html 2026-01-19T15:33:55+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l450m-mean-17713719868761088.html 2026-01-19T14:58:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-used-for-17713719880066048.html 2026-01-19T15:08:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-material-is-l245-pipeline-17713719880262656.html 2026-01-19T15:43:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l415-seamless-steel-line-pipe-17713719959938048.html 2026-01-19T16:09:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l415q-carbon-steel-line-pipe-17713719974454272.html 2026-01-19T17:15:46+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l245n-seamless-steel-line-pipe-17713720004043776.html 2026-01-19T15:55:05+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l485-seamless-steel-line-pipe-17713720016610304.html 2026-01-19T17:23:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-l360-carbon-steel-line-pi-17713720020296704.html 2026-01-19T16:01:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l485m-seamless-steel-line-pipe-17713720025162752.html 2026-01-19T16:50:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l450q-line-pipe-17713720038155264.html 2026-01-20T11:00:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-5-drill-pipe-grades-17713720058733568.html 2026-01-19T18:42:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-equivalent-to-l245-material-17713720064435200.html 2026-01-19T17:02:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-l245m-welded-steel-line-pipe-17713720069678080.html 2026-01-20T09:54:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-drill-pipe-and-tubing-pipe-17713720074167296.html 2026-01-20T15:36:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-pipe-made-of-17713720074937344.html 2026-01-19T18:37:41+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-psl2-in-api-5l-17713720075510784.html 2026-01-19T17:33:11+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-l485-line-pipe-17713720077280256.html 2026-01-20T14:38:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-s135-drill-pipe-specs-17713720082637824.html 2026-01-20T14:58:35+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/is-api-5l-x60-carbon-steel-17713720082949120.html 2026-01-20T15:11:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/is-api-5l-x65-carbon-steel-17713720084734976.html 2026-01-20T15:24:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-strength-of-api-5l-grade-b-17713720087389184.html 2026-01-20T14:47:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-heavy-weight-drill-pipe-17713720093598721.html 2026-01-19T17:54:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-l360m-welded-steel-line-p-17713720095958016.html 2026-01-19T16:42:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l415m-line-pipe-17713720098956288.html 2026-01-19T18:04:36+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-l415n-steel-line-pipe-17713720109769728.html 2026-01-20T15:57:39+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x52-pipe-specification-17713720123270144.html 2026-01-19T17:43:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-grade-is-l360-pipe-17713720143078400.html 2026-01-20T15:46:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-minimum-yield-strength-of-api-5l-x-17713720166441985.html 2026-01-20T14:19:45+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-spec-of-g105-drill-pipe-17713720174371840.html 2026-01-20T13:39:28+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-pup-joint-specifications-17713720254555136.html 2026-01-20T09:30:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-an-octg-pipe-17713720256996352.html 2026-01-20T10:28:38+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-function-of-the-drill-pipe-17713720272741376.html 2026-01-20T10:41:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-different-types-of-drilling-pipes-17713720301986816.html 2026-01-20T11:39:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-casing-coupling-17713720342897664.html 2026-01-19T18:47:06+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/yield-strength-of-api-5l-x65-psl2-line-pipe-17713720362230784.html 2026-01-20T13:52:32+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-a-coupling-and-a-pup-joint-17713720365278208.html 2026-01-20T09:40:56+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-drill-pipes-17713720397964288.html 2026-01-20T11:19:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-a-pup-joint-17713720435434496.html 2026-01-20T14:08:57+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-s135-grade-material-17713720679359488.html 2026-01-19T18:28:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-different-grades-of-api-5l-17713720862467072.html 2026-03-26T17:16:02+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-and-astm-a-106-pipe-17834678695633920.html 2026-04-02T11:51:24+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/how-thick-should-casing-be-17834679719633920.html 2026-03-30T11:03:25+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-n80-and-l80-tub-17834680112161792.html 2026-03-26T16:37:12+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-x52-psl1-and-psl2-pipeline-17834682091889664.html 2026-03-31T10:00:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-size-is-api-5l-x52-pipe-17834684836013056.html 2026-03-26T17:38:31+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-api-and-a53-pip-17834687221359616.html 2026-04-17T21:05:40+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/differences-between-api-5l-and-astm-a333-pipe-17834688161555456.html 2026-04-17T21:09:19+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-difference-between-p110-and-c110-o-17834690451923968.html 2026-03-26T16:08:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl1-vs-psl-17834690534401024.html 2026-03-26T16:59:20+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-and-api-5ct-17834696264000512.html 2026-04-17T21:26:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-l80-and-l80-type-1-casing-17834708860396544.html 2025-12-27T06:36:18+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-psl2-carbon-steel-seamless-pipe-17676692371973120.html 2025-12-27T06:36:15+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-psl2-line-pipes-17676692372775936.html 2025-12-27T06:35:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-pipe-wall-thickness-table-17676692373382144.html 2025-12-27T06:36:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-gr-b-material-17676692404823040.html 2025-12-27T06:35:59+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gr-b-carbon-steel-line-pipe-17676692446815232.html 2025-12-27T06:36:42+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-erw-pipe-17676692466328576.html 2025-12-27T06:36:07+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-chemical-composition-of-x42-pipeli-17676692535108608.html 2025-12-15T14:26:53+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-grade-of-steel-is-x52-pipe-17676692570465280.html 2025-12-27T06:36:00+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-b-pipe-17676692571825152.html 2025-12-15T14:10:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-x52-material-equivalent-to-17676692578952192.html 2025-12-27T06:36:23+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/l290-psl2-and-psl1-carbon-steel-seamless-and-w-17676692593796096.html 2025-12-27T06:36:08+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-chemical-composition-of-x42-pipe-17676692598105088.html 2025-12-27T06:36:04+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-seamless-and-erw-pipe-17676692610311168.html 2025-12-27T06:36:14+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/carbon-steel-api-5l-x42-psl-1-line-pipe-17676692639130624.html 2025-12-27T06:36:16+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gr-b-psl1-pipe-and-psl2-carbon-steel-se-17676692651615232.html 2025-12-27T06:36:01+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-grade-b-thickness-tolerance-17676692696802304.html 2025-12-27T06:36:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-temperature-range-17676692733830144.html 2025-12-27T06:36:30+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-are-the-properties-of-x42-material-17676692816880640.html 2025-12-27T06:36:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/is-api-5l-x42-carbon-steel-17676692901487616.html 2025-12-27T06:36:47+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-psl2-gr-b-seamless-steel-pipes-17676692911907840.html 2025-12-27T06:36:03+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-grade-b-pipe-schedule-chart-17676692937581568.html 2025-12-27T06:36:54+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/size-chart-of-api-5l-grade-b-carbon-steel-seam-17676693083710464.html 2025-12-27T06:36:33+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-x52-equivalent-to-17676693108466688.html 2025-12-27T06:37:10+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/difference-between-api-5l-x52-and-a106-grb-17676693231117312.html 2025-12-27T06:37:34+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5l-x42-equivalent-17676693261673472.html 2025-12-27T06:36:43+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-grade-is-x42-pipe-17676693388436480.html 2026-01-15T09:32:17+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/the-composition-of-api-5ct-j55-casing-and-tubi-17705501603505152.html 2026-01-15T09:51:09+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-api-5ct-specification-17705501736199168.html 2026-01-15T09:18:27+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-thickness-of-api-5ct-casing-17705501871170560.html 2026-01-16T15:22:48+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/what-is-the-specification-of-api-5ct-n80-oil-c-17705506504893440.html 2025-12-27T06:36:21+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-x42-psl1-psl2-hot-rolled-steels-pipe-17676692870685696.html 2025-12-27T06:37:22+08:00 weekly 0.8 https://ca.chinaspiralpipe.com/info/api-5l-gr-b-psl1-psl2-erw-pipe-17676692894295040.html