Manufacturers & Suppliers of ASTM A182 F904L SWRF Socket Weld Flange, 1-1/2\" ASME B16.5 Class 900# Socket Weld Flanges, ASME SA182 F904L Stainless Steel SWRF Socket Weld Flanges, ANSI B16.5 SWRF, DIN 1.4539 Socket Weld Flange, AFNOR Z2 NCDU 25-20, UNS N08904 SWRF Flange, EN X1NiCrMoCu25-20-5, Japanese JIS SUS 904L, BS 904S13.