Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering Casting Ductile Iron Flange Spigot for PVC Ductile Pipe Fittings, 1/2"~48" ASTM A403 Wp304h Stainless Steel Pipe Fittings Cap, FM/UL Ductile Iron Grooved Rigid Coupling Fittings and so on.