Manufacturers & Suppliers of ASTM A182 F316 BLRTJ Blind Flange, 52\" ASME B16.47 Class 150# Blind Flange Series A, ASME SA182 F316 BLRTJ Blind Flanges, ANSI B16.5 BLRTJ, DIN 1.4401 Blind Flange, GOST 20Ch25N20S2, UNS S31600 BLRF Flange, EN X15CrNi25-20, Japanese JIS SUS 316, BS 316L24.