... size:1/2"-64" 2.Materials:stainless steel or carbon steel 3.Standard:JIS,EN,DIN,ANSI,ASME 4.Type: slip on , ... blind , WN ,SW--Methodby forging ,forged flange --Pressure Ratingclass 150 300 ... material stainless steel , carbon steel , nickel alloy ,cast iron ,brass , aluminum standardANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16. ...