elbows (LR/SR; 90/45/180) 1. Material: ASTM A403-F304, F304L, F316, F316L 2. Standards: ANSI/ASME, DIN, JIS, BS, 3. Wall Thickness: SCH10S, SCH20S, SCH40S, SCH80S. 4. Mail: lisa686_1028 AT hotmail dot com 5. SIZE: 1/2" ---24" Quality is the worklife of our company