Manufacturers & Suppliers of ASTM B564 Incoloy 800HT BLRF Blind Flange, 1/2\" ASME B16.5 Class 300# Blind Flange, ASME SB564 Alloy 800HT BLRF Blind Flanges, ANSI B16.5 BLRF, DIN 1.4859/1.4876 Blind Flange, GOST ??670, UNS N08811 BLRF Flange, Japanese JIS NCF 800HT, BS NA 15(HT), EN X8NiCrAlTi32-21.