Sterlite Technologies Limited manufactures Polyal Laminated Unarmored Copper Telecom Cables. Sterlite Technologies Limited is ISO 9001 certified company. The Polyal Laminated Unarmored Copper Telecom Cables deliver superior performance in data transmission and performance reliability. These are available as "DUCT-LITE Copper Telecom Cables". The Polyal Laminated Unarmored Copper Telecom Cables are polyethylene insulated twisted pair. These cables are recommended for digital and analog data transmission between the local exchanges to associate cross connection cabinets and associated cross connection cabinets to associated distribution points. DUCT-LITE copper telecom cables are suitable for outdoor duct installation. They are applicable in telecommunication networks.