Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASTM B111 C44500 C44300 Brass Straight Copper Round Pipe, JIS High-Quality C27000 C2700 Seamless Round Brass Pipe C6872 Copper Tube, Cn102 Cw352 C70600/C70610 Heat Exchanger Tubes Copper-Nickel 90/10 and so on.