A182 F22 Alloy Steel WN Flange 1.Size:DN10 to DN1000 2. ... steel, Stainless steel and Alloy steel etc.4), Standard: ANSI, DIN, GOST, BS, JIS and customers' drawings for special use5), Types: WN ... ), Packing: In wooden cases, wooden pallets or as per customers' special requirement;8), Pressure Ratings: Class 150, 300, 600, 900, ... on, blind etc.Class150,300,600,900,1500 A182 F22 Alloy Steel WN Flange