Manufacturers & Suppliers of ASTM B462 Alloy 20 WNRF Weldneck Flange Series B, 58\" ASME B16.47 Class 400# Weldneck Flanges Series B, ASME SB462 20 Alloy WNRF Welding Neck Flanges Series B, ANSI B16.5 WNRF, DIN 2.4660 Weld Neck Flange, AFNOR Z2NCUD31-20AZ, UNS N08020 WNRF Flange, EN NiCr20CuMo.
