Welding hinge weld-on hinge 1.Excellent and high quality 2.Environmentally friendly, safe 3.Versatile 4.Competitive price.. Welding hinge Weld-On Hinge Weldable Hinge Round Hinge 1. Applications: widely used in shipping, machinery, gates, machinery doors, barbecue pits, electrical boxes, boats, cabs, commercial fishing equipment, MCC and transformer enclosures, tool boxes, traffic light controls, ...