Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASTM B111/B75 C44300/C68700/70600/71500 Copper Brass Tube for Construction Yellow Pipe, A105 BS En545 ISO2531 ISO8329 Carbon Steel Pipe Elbow/Fitting for Valve/Pipeline, ASTM A53/A106 Seamless/Welded Carbon Steel Pipe 10#/20#/35#/45# in Stock China Supply and so on.