1. Size: 1/2"-72" 2. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 3. Standard: ANSI,ASME,ASTM,JIS,DIN Stainless Steel Pipe Fittings1. Reducer:Eccentric and Concentric2. Standard: ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS P2311/23123. Size: 1/2"-72"4. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS5. Material: 201,202,301,302,304,304L,304LN, ...