Copper has high thermal and electrical conductivity that makes the copper preferred more than any other metals when it comes to wiring. Copper wires will be available in two forms; copper round wire and copper flat wire. The copper flat wire, on its part, offers many distinct advantages making this variety much sought-after by manufacturers of electrical appliances. Such wires find extensive use in transformer windings, multi-side forming and high-speed stampings. You can even make these wires according to specific needs; depending on the specification desired, the copper wires maybe rounded or flat.