Welding Hinge,Barrel Hinge Material:steel,carbon steel,stainless steel. Surface: finished oiled,zinc plated. OEM available Barrel Hinge,Welding Hinge1. Material: steel, carbon steel,stainless steel,2. Size: 1/3"-1" or as to customer's design.3. Surface: finished with oiled,zinc plated. 4. With/without grease fitting available.5. OEM are available. Steel barrel hinge,Steel weld on hinge