Cast Iron Valve, Cast Steel Valve, Ball Valve manufacturer / supplier in China, offering Factory Direct Sales ANSI B16.5 Forged Stainless Steel Carbon Steel Water Pipe Blind Plate Flange for Water Pipeline, Flange Manufacturer Forged Carbon Steel Standard ASME B16.5 Sch40 Sch80 ASTM A105 Flange, DIN/ANSI/GOST Forged Carbon Steel Plate Flanges RF Class 150 and so on.