a234 wpb astm b 16.9 carbon steel elbow 1.WT:SCH10-XXS 2.Size:1/ ... ",24"-96" 3.Qalification:ISO9001,API a234 wpb astm b 16.9 carbon steel elbow sizeSeamless:from 1/2" to 24"Welded ... SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXSstandardASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 ...