... Steel Coupling/Forged Steel Union/Socket Welding Pipe Fitting ANSIB16.11 Product Name ANSIB16.9 90 Degree Elbow, Carbon Steel Elbow ... , SS316/316L, P5, P11, P12, etc Standard: ANSIB16.9, ANSIB16.11, ASTM, DIN2605, DIN2448, DIN2391, JIS, API, GB, HG, etc. Besides ... Steel Nipple Forged Steel Elbow Socket Welding Pipe Fitting ANSIB16.11