... 0.5-48 1.SS ANSI B16.5 Lap Joint Flange2. Material:Stainless Steel:such as 201, 301 , ... "6. Type:Slip-on flanges, Blind flanges, Lap joint flanges, Welding neck flanges,Plate flange,7. Socket welding ... 5K-40K and so on .9. Sealing surface : FF ,RF, LJ, FM ,R.T.J ,R.J and so ... third party.18. Used for : petroleum,chemical,power,gas,water,linepipe, heat exchanger,shipbuilding,construction,etc.19. Tolerance ...