This excerpt taken from the CCIX 8-K filed Mar 23, 2007.
Insulated Copper Wire
Insulated copper wire is manufactured by applying one of several types of compounds to the outside of the fabricated and bunched wire. Here, end products differ by AWG size, color, voltage rating, temperature sustainability, insulation thickness and insulating material used. Copperfields insulated wire products meet standards set by Underwriters Laboratories, Inc., the Canadian Standards Association and the Society of Automotive Engineers, among other organizations. Overall, Copperfield produces the following types of insulated wire: UL hookup and lead wire (including PVC lead wire, XLPE lead wire, silicone wire and irradiated XLP and PVC wire), multi-conductor cable, battery cable (XLP and PVC), welding cable and miscellaneous lead wire.