a234 wpb astm b 16.9 carbon steel elbow 1.WT:SCH10-XXS 2.Size: ... .Qalification:ISO9001,API a234 wpb astm b 16.9 carbon steel elbow sizeSeamless:from 1/2" to 24"Welded:from ... DIN2615 DIN2616 DIN2617 JISB2311 JISB2312 JISB2313materialCarbon steel(ASTM A234WPB,,A234WPC,A420WPL6.,ect)Stainless steel(ASTM A403 WP304,304L,316, ... 316L,321.,ect)Alloy steel(ASTM A234 WP12,WP11,WP22,WP5,WP9,WP91 ...