Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering Hg/T20592-2009 316 Stainless Steel Professional Loose Flange, DIN 2631~2638 Stainless Steel Supplier in China Drilled Tapped Threaded Flange, ASME B16.47 316L Stainless Steel DN65 Professional Drilled Tapped Threaded Flange and so on.