Malleable Iron Pipe Fittings, Grooved Fittings, Butt Weld Pipe Fittings manufacturer / supplier in China, offering DIN3352/DIN3202 F4 Ductile Iron Flanged Pn10/Pn16 Metal Seated Gate Valve, Made-in-China Factory Price Poly/Polyethylene Electrofusion Socket PE/HDPE Pipe Fitting, ASTM A234 Long Radius Lr Butt-Weld Pipe Fitting 2D/2.5D/3D/4D/5D/6D Elbow/Bend and so on.