... :stainless steel or carbon steel 3.Standard:JIS,EN,DIN,ANSI,ASME 4.Type: slip on , blind , WN ,SW--Methodby forging ... , nickel alloy ,cast iron ,brass , aluminum standardANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655 ...