Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering ANSI B16.5 12 Inch Low-Pressure Fluid Systems En 10222 Plain Flange, ASME B16.5 6 Inch Low-Pressure Systems Lf3 Plain Flange, ANSI B16.5 3 Inch Compact Space Lf2 Plate Flange and so on.