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4"6" sch40/80 seamless carbon steel pipe Company Hebei Borun Steel Trade Co., Ltd ...
1/2" inch carbon steel seamless pipe Company Hebei Borun Steel Trade Co., Ltd Prod...
ASTM a333 gr6 api 5l x52 16 20 30 inch 140mm carbon steel seamless pipe Company Hebe...
1/2" inch carbon steel seamless pipe Company Hebei Borun Steel Trade Co., Ltd Produ...
ASTM Gr.B api 5l x52 16 20 30 inch 140mm carbon steel seamless pipe Company Hebei B...
Petroleum geological seamless tube Company Hebei Borun Steel Trade Co., Ltd Product...
Seamless steel pipe is a kind of long steel with hollow section and no joint around i...
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Specializing in the production of the special metal materials fasteners of titanium, ...
Specializing in the production of chemical equipments & accessories of titanium, ...