... standard:EN,UNI,JIS,DIN,ANSI Carbon Steel A 105 ANSI Blind Flange:Specifications:Surface coated with unti rust oil, ... ASTM,ASME,and so on.Process: Forged/castStructure type:Slip on flange,Welding neck flange,Blind flange,Socket welding flange,Threaded flange,Lap joint flange, ... flanges,eg.stainless steel flat flange,carbon steel blind flange,ss welding neck flange,and slip on flange,and so on.Also ...