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 ... -2008b) Customers' drawings for special use 6. Types we can supply: WN, SO, BL, plate, thread, socket and other special shapes ...