... 2.Pressure:PN6 to PN40,Class150 to 1500 3.Material:Carbon steel,stainless steel Carbon Steel Weld-neck Flange1), Name: WN flange2), Sizes: From ... : Carbon steel,stainless steel4), Standard: ANSI, DIN, GOST, BS, JIS and customers' drawings for special use5), Types: WN, SO, BL, Plate, Thread ... ,900,150041/2”—64”BS4504, PN16, PN25, PN40, etc.plate, slip-on, welding neck, blind, threaded etc.Class150,300, ...