Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering High-Pressure Stainless Steel Flanges ASME B16.47 Series a/B 321/347 2"To36" Power Plant/Marine Use, ASTM B111 Uns C68700 Copper Nickel Seamless Pipe AC, En 10204 3.1 Stainless Steel Flanges DIN 2576/2576 1.4301/1.4404 Rt/Ut Tested Cryogenic/HVAC and so on.