... the bend, flange elbow, reducer elbow, tooth bend, stamping elbow inside andoutside screw, pushing elbow, socket elbow ,butt weld elbow,inside screw elbow.Our elbow through ISO 9001 ... degree, 180 degreeBUTT WELDED FITTING:Types: Elbows, seamless and welded, LR & SR ,Bend -Equal and reducing Tees,seamless and welded - Concentric ...