NOMEX paper-covered wire is a winding wire made from oxygen-free copper rods or electrical round aluminum rods extruded through a specific mold size, then wrapped with T410 type NOMEX insulating paper produced by DuPont in the United States. It is primarily used for windings in transformers, welding machines, electromagnets, or other similar electrical equipment products. The bare copper (aluminum) electrical conductors produced through the extrusion process are the most ideal materials for manufacturing NOMEX paper-covered wire.