The Bare Copper Trolley Wires are used as current contact wire to supply power to mining cars, mining equipment, industrial cranes, and urban transit and railroad vehicles. ASTA India Private Limited manufactures Bare Copper Trolley Wires. ASTA India Private Limited is the manufacturer of various types of environmentally friendly winding wire used in electrical machinery. The properties of the bare wire includes surface finish and purity, edge radii, and copper grain structure. Cables are available in copper and copper alloys, manufactured to conform to applicable standards.