Polyurethane tubes are used in industry robot, pneumatic equipment. They are used for controlling lubricating oil system and also for various air tools. These coil tubes are rugged in performance and robust in design. Coil Tube: The various coil tubes made by us are compact in design and useful in small space working area. They are more flexible than nylon and have high resistance to cold temperature. These coil tubes are light in weight and can easily be designed as per the clients need and requirement.