... to 100kgs 2.rail:aluminium alloy,operates steadily Quality intelligent curtain 1,Blind design has beautiful and luxurious range of quality ... .3. The motor with clutch inside for easy control the curtain by electrical 4. Adopted the strong steel belt, not easy ... bend shape, the maximal width of one motor is 8m6. Wireless control, infrared control, manual switch and group control can be ...