Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering ASME B16.5 DN150 Class 300 Critical Equipment ASTM A182 Plate Flange Stainless Steel, ASME B16.5 12 Inch Class 300 ASTM A182 F11/F22 Critical Equipmentwelding Neck Flange Stainless Steel Flange, ASME B16.5 DN150 Class 300 High-Pressure Pipelines ASTM A182 Plate Flange Stainless Steel and so on.