Stainless steel blind flange Standard:ASME ANSI DIN JPI Flange material:stainless steel ... typePlate flange,Flat flange,Slip on flange,Welding neck flange,blind flange ,Thread flange,lap joint flange etc 2.StandardANSI B16 ... female connection, etc 7.Quality testEddy current test,Hydrostatic test,Ultrasonic test,Intergranular corrosion test or as per the customers' request ...