High quality carbon steel forged flange 1. Types:SO, ... :ANSI,ASME,ASTM 3. Size:3/8"-96" High quality carbon steel forged flange Manufacturer 1. Types:SO,WN,PL ... supply: WN, SO, BL, plate, thread, socket and other special shapes 7. Painting: Black,oil,zinic 8. Kinds of ... Lightly oiled b) Galvanized c) Painting with different colors d) Just keep the flanges dry and clean as per customers' requirement 10 ...