As the basic conductor of other winding wires, bare copper wire is defined as an oxygen-free copper rod that is made into various specifications of flat wire or round wire after a specific specification mold extrusion or drawing is made in accordance with customer requirements. This wire is then prepared for coating processes using paint, paper, fiber glass, or other insulating material covering insulation. The product can be used for life wire supplies or winding of transformers, generators, motors, reactors, and other electrical equipment.