Formation: The central conductor is composed of single / multi-strand naked or tin-plated copper wires. The criterion of the conductors with outside insulation layer of PVC is no less than 32 AWG. Outside the bundle of conductors are Aluminum foil and then the shield of braiding or winding of naked or tin-plated copper wires. The outermost side is the bouncy protective cover of PVC. This type of cable is applicable to communication, instruments and computer.