High quality carbon steel forged flange 1. Types:SO,WN,PL,BL,SW 2. Standard :ANSI,ASME,ASTM 3. ... Size:3/8"-96" High quality carbon steel forged ... flange Manufacturer 1. Types:SO,WN,PL,BL,SW 2. Standard :ANSI, ... special use 6. Types we can supply: WN, SO, BL, plate, thread, socket and other special shapes 7. Painting ...