Flange, Stainless Steel Flange, DIN Flange manufacturer / supplier in China, offering DIN En1092-1 BS4504 Uni GOST ANSI ASME B16.5 JIS Stainless Steel 304 316 316L Long Weld Neck Flange ASTM 1/2 250 Stainless Steel Pipe Flange Pn16 Class150# 5K, Inner and Outer Ring Graphite Spiral Wound High Pressure Flanged Gasket, Flanged Black Flat Sheet Silicone Rubber EPDM Gasket and so on.