2025-10-11T17:03:10+08:00 weekly 1.0 https://kn.octgsteels.com/ 2025-09-23T16:10:51+08:00 weekly 0.9 https://kn.octgsteels.com/company-honor 2025-09-25T15:34:49+08:00 weekly 0.9 https://kn.octgsteels.com/production-base 2025-11-10T17:02:04+08:00 weekly 0.9 https://kn.octgsteels.com/resources 2025-11-12T17:39:38+08:00 weekly 0.9 https://kn.octgsteels.com/faq 2025-11-17T18:13:11+08:00 weekly 0.9 https://kn.octgsteels.com/after-sales 2026-01-12T17:58:20+08:00 weekly 0.9 https://kn.octgsteels.com/stock 2026-01-12T17:59:46+08:00 weekly 0.9 https://kn.octgsteels.com/application 2026-03-15T13:52:52+08:00 weekly 0.9 https://kn.octgsteels.com/video 2026-03-15T13:53:11+08:00 weekly 0.9 https://kn.octgsteels.com/download 2026-03-15T13:57:08+08:00 weekly 0.9 https://kn.octgsteels.com/project 2025-11-17T03:45:48+08:00 weekly 0.9 https://kn.octgsteels.com/about-us 2026-03-24T12:07:06+08:00 weekly 0.9 https://kn.octgsteels.com/contact-us 2026-03-24T12:07:07+08:00 weekly 0.9 https://kn.octgsteels.com/inquiry 2025-11-17T03:46:00+08:00 weekly 0.9 https://kn.octgsteels.com/newslist-1 2025-11-17T03:46:06+08:00 weekly 0.9 https://kn.octgsteels.com/info/ 2025-11-17T03:46:05+08:00 weekly 0.9 https://kn.octgsteels.com/products 2025-11-16T18:48:49+08:00 weekly 1.0 https://kn.octgsteels.com/octg-casing-and-tubing/ 2025-11-16T18:49:00+08:00 weekly 1.0 https://kn.octgsteels.com/steel-pipe/ 2025-11-16T18:49:10+08:00 weekly 1.0 https://kn.octgsteels.com/steel-pipe-fittings/ 2025-11-16T18:49:34+08:00 weekly 1.0 https://kn.octgsteels.com/steel-pipe-fittings/pipe-fitting/ 2025-11-16T18:49:46+08:00 weekly 1.0 https://kn.octgsteels.com/coating-pipe/ 2025-11-16T18:49:51+08:00 weekly 1.0 https://kn.octgsteels.com/coating-pipe/concrete-weight-coating/ 2025-11-16T18:49:52+08:00 weekly 1.0 https://kn.octgsteels.com/steel-pipe-fittings/flange/ 2025-11-16T18:50:06+08:00 weekly 1.0 https://kn.octgsteels.com/sucker-rods/ 2025-11-16T18:50:07+08:00 weekly 1.0 https://kn.octgsteels.com/drill-pipes/ 2025-11-17T03:41:13+08:00 weekly 1.0 https://kn.octgsteels.com/valve/ 2025-11-17T03:41:39+08:00 weekly 1.0 https://kn.octgsteels.com/coating-pipe/external-coating/ 2025-11-17T03:42:15+08:00 weekly 1.0 https://kn.octgsteels.com/coating-pipe/galvanized-steel-pipe/ 2025-11-17T03:42:41+08:00 weekly 1.0 https://kn.octgsteels.com/steel-plates/ 2025-11-18T00:25:16+08:00 weekly 1.0 https://kn.octgsteels.com/coating-pipe/internal-coating/ 2026-03-15T10:56:32+08:00 weekly 0.9 https://kn.octgsteels.com/steel-pipe-production-lines/ 2026-03-25T16:51:18+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/lsaw-welded-steel-pipe.html 2026-03-25T16:49:30+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/api-5l-seamless-pipe.html 2026-03-25T16:51:16+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/ssaw-welded-steel-pipe.html 2026-03-25T16:55:52+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/erw-welded-steel-pipe.html 2026-03-25T16:53:31+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/seamless-steel-pipe.html 2026-03-25T16:52:23+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/sour-service-special-applications.html 2026-03-25T16:52:15+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/carbon-steel-pipe.html 2026-03-25T16:49:25+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/boiler-pipe.html 2026-03-25T16:51:31+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/casing.html 2026-03-25T16:54:16+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/tubing.html 2026-03-25T16:50:54+08:00 weekly 0.8 https://kn.octgsteels.com/sucker-rods/high-strength-sucker-rod.html 2026-03-25T16:50:44+08:00 weekly 0.8 https://kn.octgsteels.com/drill-pipes/drill-pipe.html 2026-03-25T16:51:25+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/stainless-steel-pipe.html 2026-03-25T16:51:37+08:00 weekly 0.8 https://kn.octgsteels.com/steel-plates/steel-coil.html 2026-03-25T16:58:31+08:00 weekly 0.8 https://kn.octgsteels.com/valve/api-6d-valve-and-pipeline-valve.html 2026-03-25T16:50:23+08:00 weekly 0.8 https://kn.octgsteels.com/valve/wellhead-and-christmas-tree.html 2026-03-25T16:50:42+08:00 weekly 0.8 https://kn.octgsteels.com/drill-pipes/api-5dp-drill-pipe.html 2026-03-25T16:54:01+08:00 weekly 0.8 https://kn.octgsteels.com/sucker-rods/sucker-rod.html 2026-03-25T16:50:44+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/chrome-molypipe-high-preformance-alloy-steel.html 2026-03-25T16:50:58+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/cra-clad-and-lined-pipe.html 2026-03-25T16:49:48+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/conductor-pipe.html 2026-03-25T16:50:53+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/casing-and-tubing-api-5ct.html 2026-03-25T16:50:40+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/drilling-riser.html 2026-03-15T10:57:35+08:00 weekly 0.8 https://kn.octgsteels.com/steel-plates/steel-plate.html 2026-03-15T11:00:35+08:00 weekly 0.8 https://kn.octgsteels.com/steel-plates/round-bar.html 2026-03-15T11:00:06+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/fbe-internal-coating-for-octg-tubing-and.html 2026-03-15T11:00:17+08:00 weekly 0.8 https://kn.octgsteels.com/steel-plates/4100mm-heavy-and-wide-plate.html 2026-03-15T11:02:36+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/sanitary-pipe.html 2026-03-15T11:01:54+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-production-lines/lsaw-steel-pipe-production-line.html 2026-03-15T11:03:22+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe/pe-pipe.html 2026-03-15T13:51:45+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/hammer-unions.html 2026-03-15T13:57:13+08:00 weekly 0.8 https://kn.octgsteels.com/octg-casing-and-tubing/insulated-tubing.html 2026-03-15T14:50:41+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-production-lines/erw-pipe-production-line.html 2026-03-15T14:48:49+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-production-lines/ssaw-pipe-production-line.html 2026-03-25T04:25:04+08:00 weekly 0.8 https://kn.octgsteels.com/steel-plates/china-steel-silo.html 2026-03-25T16:50:41+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/pipe-fitting/threaded-pipe-fittings.html 2026-03-25T16:50:27+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/pipe-fitting/butt-weld-pipe-fittings.html 2026-03-25T16:51:18+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/pipe-fitting/socket-weld-pipe-fittings.html 2026-03-25T16:50:38+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/flange/weld-neck-flange.html 2026-03-25T16:50:21+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/flange/socket-weld-flange.html 2026-03-25T16:53:39+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/concrete-weight-coating/anode-installation.html 2026-03-25T16:54:25+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/flange/threaded-flange.html 2026-03-25T16:50:21+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/concrete-weight-coating/pipeline-concrete-weight-coating-cwc.html 2026-03-25T16:52:37+08:00 weekly 0.8 https://kn.octgsteels.com/steel-pipe-fittings/pipe-fitting/clad-pipe-fittings.html 2026-03-25T16:51:52+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/external-coating/3lpe-coating-pipe.html 2026-03-25T16:50:14+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/external-coating/3lpp-coating-pipe.html 2026-03-25T16:50:15+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/external-coating/pu-insulated-pipe.html 2026-03-15T10:57:16+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/internal-coating/internal-fbe-coating-pipe.html 2026-03-15T10:58:44+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/galvanized-steel-pipe/hot-dip-galvanizing.html 2026-03-15T10:59:38+08:00 weekly 0.8 https://kn.octgsteels.com/coating-pipe/external-coating/fbe-coating-pipe.html 2025-11-17T20:41:58+08:00 weekly 0.9 https://kn.octgsteels.com/newslist-17620915282453504-1 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/news-o-17619389454476288.html 2025-11-17T03:43:01+08:00 weekly 0.8 https://kn.octgsteels.com/news/news-n-17619389519062016.html 2025-11-17T03:43:03+08:00 weekly 0.8 https://kn.octgsteels.com/news/news-e-17619389520684032.html 2025-11-17T03:43:06+08:00 weekly 0.8 https://kn.octgsteels.com/news/theoretical-weight-of-stainless-steel-pipe-17619389546865664.html 2025-11-17T03:43:09+08:00 weekly 0.8 https://kn.octgsteels.com/news/stainless-steel-pipe-composition-17619389560366080.html 2025-11-17T03:43:26+08:00 weekly 0.8 https://kn.octgsteels.com/news/uses-of-stainless-steel-pipes-17619389579437056.html 2025-11-17T03:43:38+08:00 weekly 0.8 https://kn.octgsteels.com/news/the-functions-of-oil-casing-17619389601768448.html 2025-11-17T03:43:13+08:00 weekly 0.8 https://kn.octgsteels.com/news/applications-of-stainless-steel-pipe-17619389637075968.html 2025-11-17T03:43:39+08:00 weekly 0.8 https://kn.octgsteels.com/news/flange-welding-quality-17619389658440704.html 2025-11-17T03:43:33+08:00 weekly 0.8 https://kn.octgsteels.com/news/applications-of-stainless-steel-pipes-17619389670417408.html 2025-11-17T03:43:44+08:00 weekly 0.8 https://kn.octgsteels.com/news/the-importance-of-oil-casing-and-tubing-in-oil-17619389696533504.html 2025-11-17T03:43:52+08:00 weekly 0.8 https://kn.octgsteels.com/news/basic-structure-of-galvanized-pipe-17619389721912320.html 2025-11-17T03:44:00+08:00 weekly 0.8 https://kn.octgsteels.com/news/steel-coil-characteristics-17619389732086784.html 2025-11-17T03:43:48+08:00 weekly 0.8 https://kn.octgsteels.com/news/what-materials-are-needed-for-flange-manufactu-17619389738492928.html 2025-11-17T03:43:55+08:00 weekly 0.8 https://kn.octgsteels.com/news/how-to-calculate-steel-coil-weight-17619389740803072.html 2025-11-17T03:44:07+08:00 weekly 0.8 https://kn.octgsteels.com/news/the-function-of-the-sucker-rod-17619389761020928.html 2025-11-17T03:44:02+08:00 weekly 0.8 https://kn.octgsteels.com/news/sucker-rod-usage-precautions-17619389774570496.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/how-to-use-a-sucker-rod-to-pump-oil-17619389775422464.html 2025-11-17T03:44:15+08:00 weekly 0.8 https://kn.octgsteels.com/news/key-features-of-drill-pipe-17619389778977792.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/drill-pipe-material-standards-17619901371769856.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/valve-introduction-17619901458752512.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/valve-cleaning-procedures-17619902029014016.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/domestic-valve-status-17619902324974592.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/company-announcement-participation-17620915399205888.html 2026-03-15T11:13:43+08:00 weekly 0.8 https://kn.octgsteels.com/news/octal-pipe-updates-carbon-steel-pipe-inventory-17787394740954112.html 2026-03-15T11:14:15+08:00 weekly 0.8 https://kn.octgsteels.com/news/company-announcement-participation-in-the-17787395041797120.html 2026-03-15T11:14:50+08:00 weekly 0.8 https://kn.octgsteels.com/news/mexico-s-plan-to-impose-high-tariffs-on-chines-17787395499893760.html 2026-04-06T07:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/news/company-announcement-participation-in-seaisi-17787395782534144.html 2026-03-15T11:15:09+08:00 weekly 0.8 https://kn.octgsteels.com/news/octal-pipe-accelerates-digital-transformation-17787395814401024.html 2026-03-15T14:49:54+08:00 weekly 0.8 https://kn.octgsteels.com/news/aktobe-neftekhim-2025-octal-pipe-exhibition-17787606894076928.html 2026-03-15T14:50:23+08:00 weekly 0.8 https://kn.octgsteels.com/news/octal-pipe-at-adipec-2025-advancing-material-17787607242515456.html 2026-03-15T14:50:53+08:00 weekly 0.8 https://kn.octgsteels.com/news/finished-product-spot-check-austenitic-stainl-17787607803241472.html 2026-03-15T14:51:14+08:00 weekly 0.8 https://kn.octgsteels.com/news/shipment-to-mexico-octal-pipe-delivers-api-17787608591574016.html 2026-03-25T04:24:10+08:00 weekly 0.8 https://kn.octgsteels.com/news/octal-pipe-new-year-celebration-employee-bir-17801147524473856.html 2026-03-25T04:25:09+08:00 weekly 0.8 https://kn.octgsteels.com/news/astm-carbon-steel-fittings-flanges-seamless-17801147752244224.html 2026-03-25T04:24:29+08:00 weekly 0.8 https://kn.octgsteels.com/news/octal-pipe-director-kevin-wen-joined-anyang-g-17801147976573952.html 2026-03-25T04:25:40+08:00 weekly 0.8 https://kn.octgsteels.com/news/casing-delivery-to-halliburton-api-5ct-seamle-17801148128732160.html 2026-03-25T04:25:53+08:00 weekly 0.8 https://kn.octgsteels.com/news/after-export-licenses-return-steel-exports-mo-17801148546475008.html 2025-11-17T20:39:55+08:00 weekly 0.9 https://kn.octgsteels.com/info/17620913273480192/ 2025-11-17T20:39:57+08:00 weekly 0.9 https://kn.octgsteels.com/info/17620913297351680/ 2026-03-25T04:24:52+08:00 weekly 0.8 https://kn.octgsteels.com/info/how-to-make-pipe-connection-and-sealing-more-r-17801148137317376.html 2026-03-25T04:25:19+08:00 weekly 0.8 https://kn.octgsteels.com/info/precision-304-and-316-stainless-steel-tubes-17801147862492160.html 2026-03-15T14:50:53+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a672-pipe-standard-overview-17787608134132736.html 2026-03-15T14:51:05+08:00 weekly 0.8 https://kn.octgsteels.com/info/cased-hole-vs-openhole-when-to-use-slotted-li-17787607996261376.html 2026-03-15T14:24:01+08:00 weekly 0.8 https://kn.octgsteels.com/info/how-do-you-choose-the-right-galvanized-steel-p-17787579754931200.html 2025-12-17T10:33:53+08:00 weekly 0.8 https://kn.octgsteels.com/info/when-do-you-need-premium-connections-17787578975380480.html 2026-03-15T11:18:25+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a213-sa213-t9-t11-t22-t91-alloy-and-st-17787398729344000.html 2026-03-15T11:18:10+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a213-t9-alloy-steel-tubing-17787398310159360.html 2026-03-15T11:19:28+08:00 weekly 0.8 https://kn.octgsteels.com/info/api-5l-x65-welded-line-pipe-17787398187148288.html 2026-03-15T11:18:10+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a312-stainless-steel-pipe-17787398183527424.html 2026-03-15T11:17:48+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a213-t5-alloy-steel-tubing-17787397940864000.html 2026-03-15T11:17:19+08:00 weekly 0.8 https://kn.octgsteels.com/info/api-5l-x70-welded-line-pipe-specification-17787397146289152.html 2026-03-15T11:16:07+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a106-grade-b-seamless-pipe-17787396712440832.html 2025-11-18T11:28:22+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a335-p11-seamless-alloy-steel-pipe-for-hi-17621136128779264.html 2025-11-07T15:38:40+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a335-p22-pipe-specification-chrome-moly-17620915657450496.html 2025-11-07T15:37:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/incoloy-825-nickel-alloy-825-uns-n08825-17620915499033600.html 2025-11-07T15:35:58+08:00 weekly 0.8 https://kn.octgsteels.com/info/inconel-625-nickel-alloy-625-uns-n06625-17620915434726400.html 2025-11-07T14:40:56+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a335-p9-alloy-steel-pipe-17620915238216704.html 2025-11-07T15:24:21+08:00 weekly 0.8 https://kn.octgsteels.com/info/316l-316ti-316hi-stainless-steel-pipe-17620915063514112.html 2025-11-07T14:51:15+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a335-p5-seamless-alloy-steel-pipe-17620915063055360.html 2025-11-07T15:11:10+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a213-t11-tubing-specification-17620914992063488.html 2025-11-07T15:21:20+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a53-grade-a-and-b-steel-pipe-17620914870150144.html 2025-11-07T15:25:50+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a333-grade-6-pipe-17620914802025472.html 2025-11-07T15:26:40+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a500-grade-c-pipe-specification-17620914670412800.html 2025-11-07T15:29:21+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a179-asme-sa179-heat-exchanger-tubes-17620914442740736.html 2025-11-07T15:27:54+08:00 weekly 0.8 https://kn.octgsteels.com/info/astm-a252-grade-3-pipe-pileastm-a252-grade-3-p-17620914409006080.html 2025-11-07T15:30:45+08:00 weekly 0.8 https://kn.octgsteels.com/info/seamless-steel-pipe-engineered-for-high-inte-17620914380317696.html 2025-11-07T15:34:11+08:00 weekly 0.8 https://kn.octgsteels.com/info/what-is-a-pipeline-understanding-the-lifeline-17620914087322624.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/do-stainless-steel-pipes-expand-and-contract-w-17620909950116864.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/valve-operation-and-maintenance-17619912433755136.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/daily-valve-maintenance-17619911791502336.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/valve-installation-requirements-17619911392863232.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/drill-pipe-steel-grade-strength-17619911328375808.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/how-the-sucker-rod-works-17619911279158272.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/steel-coil-classification-17619911177937920.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/flange-connection-methods-17619910845719552.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/applications-and-advantages-of-galvanized-pipe-17619910842131456.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/oil-casing-and-tubing-production-process-and-d-17619910800892928.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/composition-of-oil-casing-17619910625485824.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/characteristics-of-stainless-steel-pipe-17619910576251904.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/characteristics-of-stainless-steel-pipes-17619910563193856.html 2025-10-11T06:18:26+08:00 weekly 0.8 https://kn.octgsteels.com/info/functions-of-each-layer-in-a-stainless-steel-p-17619910142419968.html