... ", DN12-DN306 Standard Pipe and Valve Lines: Elbow, Tee, Reducing Tee, Cross; Elbow System: 45 deg short elbow, 45 deg long elbow ... elbow; Welding Short Tee, Welding Long Tee, Long Reducing Tee, Y type Tee, Cross; Reducing Tee , Concentric Reducer, Eccentric Reducer , Elbow , Clamp Elbow ...