High quality carbon steel forged flange 1. Types:SO,WN,PL,BL, ... :ANSI,ASME,ASTM 3. Size:3/8"-96" High quality carbon steel forged flange Manufacturer 1. Types:SO,WN,PL,BL,SW 2 ... other special shapes 7. Painting: Black,oil,zinic 8. Kinds of forging: a) Free forging b) Die forging c) Rolling 9 ...