1. This system is very quiet and smooth, stainless steel control bead chain operation feel comfortable, curtain cloth can run freely and stop in any middle position. 2. A variety of installation methods are available, including hanging installation, side hanging installation and hidden installation. 3. The optional positioning adjustment function can adjust the upper and lower limit of the roller shutter operation, so as to avoid the unforeseen collision of the roller shutter bottom bar with the window crossbar. 4. The optional side fixing device can prevent the cord from shaking left and right, and the child safety device can be selected. 5. Multiple systems can be installed side by side, and each system shares a middle bracket to reduce light transmission.
