... etc, it’s a upgrade product from manual roller shutter. Reelpipe is high quality aluminum alloy material, high strength, difficult to deform, ... , anti-aging, corrosion preventive. According to the height of roller shutter, reelpipe diameter can be choosed 50mm, 70mm, 80mm or ... motor drive a few fabrics, saving investment for you. When roller shutter is tilted or high, using guide rail or dragrope . ...