Sanitary Pipe Elbow 1.W.T:Sch5S-Sch80S,STD, ... ,DIN,JIS,BS,etc 4.Finish:Polished,stain Stainless Steel 90 Degree ElbowDescription MaterialStainless steel (304, 304L, 316, 316L, 321, 321H, ... of Pipeline Materials to oil field and refinery as Steel Pipes,Pipe Fittings,Flange,Valves,Gasket,Petroleum Machinery, Fasteners ... cooperate with us,and create a bright future together. Sanitary Stainless Steel Elbow