Manufacturers & Suppliers of ASTM B564 Inconel 690 SORF Slip On Flange, 2\" ASME B16.5 Class 600# Slip On Flange, ASME SB564 Alloy 690 SORF Slip On Flanges, ANSI B16.5 SORF Flanges, DIN 2.4816 Slip On Flange, GOST ????? 28-2,5-1,5, UNS N06690 SORF Flange, AFNOR NC15FE11M, Japanese JIS NCF 690, BS NA 13, EN NiCr15Fe.