Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering ASME B16.36 A105 F11 6inch Class 600 Orifice Flange B16.5 Wnrf, Premium SUS 316L Grade a Stainless Steel Clad Plate, Hot Rolled DIN17175 St35.8 St52.7 Carbon Steel Seamless Tube for Boiler and so on.