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We, Hebei Borun Petroleum Pipe Manufacturing Co.,Ltd are an international manufactu...
API 5CT Seamless Casing pipe Descriptions: 1 Production Process: Seamless & ERW ...
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we supply SAIBIC rebar steel, Railway steel R50 - R65, Billet steel, Coil steel
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API 5CT OCTG Casing Pipe Standard: API Standard: API 5CT Grade: API J55-API P110 Gra...
China new steel holding group co., Ltd is one of the largest iron and steel productio...