Manufacturers & Suppliers of ASTM B462 Alloy 20 WNRF Weldneck Flange Series A, 36\" ASME B16.47 Class 400# Weldneck Flanges Series A, ASME SB462 20 Alloy WNRF Welding Neck Flanges Series A, ANSI B16.5 WNRF, DIN 2.4660 Weld Neck Flange, AFNOR Z2NCUD31-20AZ, UNS N08020 WNRF Flange, EN NiCr20CuMo.
