... 2.Pressure:PN6 to PN40,Class150 to 1500 3.Material:Carbon steel,stainless steel Carbon Steel Weld-neck Flange1), Name: WN flange2), Sizes: From DN10 ... : Carbon steel,stainless steel4), Standard: ANSI, DIN, GOST, BS, JIS and customers' drawings for special use5), Types: WN, SO, BL, Plate, Thread, Socket ...