... ,SCH40,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN Carbon Steel Reducers1. Reducer: Eccentric and Concentric2. Standard: ANSI B16.9 / 16 ... .28, ASTM A53/A106, API 5L, ... -rust varnish oil,hot galvanizing or as customer's special requirement 1/2"-72" ANSI,ASME,ASTM,JIS,DIN Carbon Steel Reducer