Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering Welded Steel Pipes A53 A106 API 5L Gr. B X42 to X70 for Construction, Carbon Steel Pipe ASTM A333 Low-Temperature Smls Tubes, Smls Medium-Carbon Steel Boiler Tubes ASTM A210/A210m Grade A/C Superheater Pipes and so on.
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