... Forged Welding Neck Stainless Steel Flange 1.Flange typePlate flange,Flat flange,Slip on flange,Welding neck flange,blind flange ,Thread flange,lap joint flange etc 2.StandardANSI B16 ... ,Flat face,Ring type joint,Lap-joint face,male and female connection, etc 6.Quality testEddy current test,Hydrostatic ... .ApplicationPetroleum,chemical industry,paper making,metallurgy,water supply and sewage project etc