... , alloy, stainless steel Size: according to the customer's requirement Bs Flange 1)Types:WN,SO,BL,Plate,Thread,Socket 2 ... ) Materials: CS, SS, Alloy steel 3) Standards:ANSI, BS, DIN, JIS, UNI,Non-standard4) Size : DN10 to DN3000 5 ... steel flanges b) Plate cutting flanges7) Kinds of forging: a) Free forging b) Die forging c) Rolling 8) Rustproof treatment: a ...