Manufacturers & Suppliers of ASTM B564 Incoloy 825 SWRF Socket Weld Flange, 3/4\" ASME B16.5 Class 300# Socket Weld Flanges, ASME SB564 Alloy 825 SWRF Socket Weld Flanges, ANSI B16.5 SWRF, DIN 2.4858 Socket Weld Flange, GOST ??703, UNS N08825 SWRF Flange, AFNOR NFE30C20DUM, EN NiCr21Mo, Japanese JIS NCF 825, BS NA 16.