We are offering here the Industrial & Institution Special Operation Doors that is electrically operated Industrial Doors, a 1 phase or 3 phase motor is positioned at the top of the door which powers all of the mechanical components. An adequate power supply will be required in this general area. The roller assembly is a steel tube fitted at both sides of the end plate which is used to hold the shutter curtain. Industrial lift doors are important parts of industrial doors and are mainly installed in large-size openings in large buildings such as industrial plants, workshops, and warehouses. Industrial & Institution Special Operation Doors are very effective.