Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering ASME B16.5 A350 Lf2 Spectacle Blind Flanges Threaded Flange Fittings, ASTM A350 Lf1/Lf2/Lf3 Carbon Steel Flange Low-Temperature Butt-Weld Pipe Fittings, 3PE-Coated Steel Pipe Fbe-Coating Black Paint SSAW Pipe Hot-DIP Galvanized Spiral Pipe and so on.