Pull it closed or open up together with your hand, assisted by a spring. Rotate a removable long pole to put the shutter up or down. Pulling a strap or turn a crank box to function the shutter. Our roller shutter supplier professionals will focus on your demands with https://24-7-all-doors-and-roller22975.blogdal.com/27122233/the-5-second-trick-for-24-7-all-doors-and-roller-shutter-repairs