Butt Welding Elbow 1.Thickness: Sch5-Sch160,STD,XS,XXS ... '' 3.Type: 45DEG 90DEG 180DEG Stainless Steel Welding Elbow Description MaterialASTM A403 WP304/304L, WP316/316L,WP321, ... Typereducing elbow, long radius elbow, short radius elbow, 45D L/R Elbow, 45D S/R Elbow, 90D L/R Elbow , 90D S/R Elbow, ... 180D L/R Elbow ...