Manufacturers & Suppliers of ASTM B564 Hastelloy C276 BLRTJ Blind Flange, 40\" ASME B16.47 Class 150# Blind Flange Series B, ASME SB564 Hastelloy C276 BLRTJ Blind Flanges, ANSI B16.5 BLRTJ, DIN 2.4819 Blind Flange, GOST ??65???, UNS N10276 BLRTJ Flange, Japanese JIS NW 0276, EN NiMo16Cr15W.