... QUALIFICATION:ISO,API,CE MATERIAL:ASTM A234 WP5 A234 WP5 ALLOY STEEL ELBOW Production name45D/90D/180D LR/SR ELBOW,EQUAL ... ,SCH100,SCH120,SCH160,XXS Material Code:Carton SteelASTM A-234 WPB,WPC;ASTM A-420 WPL9,WPL3,WPL6;MSS-SP-75 WPHY ... 42/46/52/56/60/65/70Alloy SteelASTM A-234 WP1 ,WP5,WP9,WP11,WP22,WP91DUPLEX&SUPER DUPLEXSTAINLESS STEELASTM ...