Fast Rolling Automatic Rolling Shutter Door

Factory Fast Rolling Automatic Rolling Shutter Door High Speed Door Grey, Yellow grid, Purple, Green, Light green, Black, Perforated Yellow grid, White, Blue, White grid, Sky Blue, Yellow, Orange, Red Color curtain: 0.8 mm thickness.        Transparent curtain: 1.2 mm. Function:insect prevention Reinforce girder Aluminum alloy    45 mm width. Function:reinforce the curtain and wind resistant Bottom bar Aluminum alloy  95 mm width  Function:reinforce the curtain to keep the door opening without a hitch Radar sensor The place on the cover box.  Can detect 3 meters area! Function: detect the moving thing and open the door.…