Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering API 5L ASTM A106 Gradea/C Carbon Seamless Steel Pipe Round Tubes, ASTM A182 Class300/900/1500 for ANSI B16.5 Alloy Steel Blind Flanges, ASME SA182 ANSI B16.5 317L/321L Stainless Steel Flange Fitting and so on.
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