... /2"-72" 2. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 3. Standard: ANSI,ASME,ASTM,JIS,DIN Carbon Steel Reducers1. Reducer ... / 2615 / 2616, JIS P2311/23123. Size: 1/2"-72"4. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS5. Material: ASTM A234 ...