stainless steel flange(various material, types and dimension) stainless steel flange(various material, types and dimension)stardand: astmmaterial : 304,304L,304H,321,,321H,316,316L,317L,310S,347Hdiameter: 15-2000mmtype: welding neck flange, thread flange, slip on flange, blind flange, lap joint flange, socket neck flange. SPECIFICATION AS CUSTOMER'S REQUESTION