Difference between aluminium roll gate and iron roll gateStructurally, there is no difference, but the aluminum roll gate weight is light, the motor needs little effect, save power;and the iron roll gate weight, motor power, electricity, but the door of high strength, better safety performance.Structurally, there is no difference, but the aluminum roll gate weight is light, the motor needs little effect, save power; and the iron roll gate weight, motor power, electricity, but the door of high strength, better safety performance.Other related question