Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering API5l/API 5CT Oil Pipe ASTM A53/252/As1163 Carbon Steel LSAW/ ERW Pipe, Steel Pipe API 5L 5CT Pipeline Oil Casting/ Efw Pipe/LSAW Welded Steel Pipe, Black Painted Oil Varnished DN1016 LSAW Welded Carbon Steel Pipe and so on.
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