1.CS butt welding Elbow for oil pipe line 2.1/2'' ... /T,L/C 5.API,CE,ISO butt welding elbow CS butt welding Elbow for oil pipe line 1. Material: carbon ... , WPL3, WPL6, WPHY-42WPHY-46, WPHY-52, WPHY-60, WPHY-65, WPHY-70,2 ALLOY STEELASTM A234 WP1, WP11, WP12, WP22 ... & HIC Fittings for Off-Shore Applications Production Facility Certificate: Package: CS butt welding Elbow for oil pipe line