1. Variety--elbow, Tee, Reducer, Cross, Cap 2. Material--carbon Steel( ASTM A234WPB And Etc.), 3. Wall Thickness--40S, 80S, 120, 160, XS, XXS, STD,SGP And Etc. 4. Standard-- ANSI B16.9; ASME B16.28; MSS-SP-75; DIN2605/2615/2616; DIN28011; JIS B231 ...Read More