Copper-Nickel Tube/Nickel Alloy Tube manufacturer / supplier in China, offering High Quality Copper Nickel Tube C70600 90/10 Fittings 6m/PC, Seamless ASTM B111 6" Sch40 CuNi 90/10 C70600 C71500 Tube, High-Pressure Weld Neck Carbon Steel Flange for Oil Gas Pipeline and so on.