Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering JIS H 3300 C1020 99.9% Cu C7060 Copper-Nickel Seamless Tube & Pipe, ASTM B-151 B-122 C70600 Copper-Nickel 90/10 Tubes Heat Exchanger Pipes, Uns C70600 JIS H3300 C7060 Copper Alloy Seamless Pipes for Shipbuilding, Petrochemical and so on.