Malleable Iron Pipe Fittings, Grooved Fittings, Butt Weld Pipe Fittings manufacturer / supplier in China, offering ASTM A234 Long Radius Lr Butt-Weld Pipe Fitting 2D/2.5D/3D/4D/5D/6D Elbow/Bend, UL/FM En10242 ASME-B16.3 ASTM-A197 Galvanized Malleable Iron Junior/Johnson Coupling, DIN3352/DIN3202 F4 Ductile Iron Flanged Pn10/Pn16 Metal Seated Gate Valve and so on.