... ASME,ASTM,JIS,DIN Carbon Steel Reducers1. Reducer: Eccentric and Concentric2. Standard: ANSI B16.9 / 16.28, ASTM ... / 2615 / 2616, JIS P2311/23123. Size: 1/2"-72"4. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160, ... XXS5. Material: ASTM A234 WPB, ST35.8, ST37, WP11, 20#, Q2356. Surface treatment: black painting,Anti ... or as customer's special requirement 1/2"-72" ANSI,ASME,ASTM,JIS,DIN Carbon Steel ...