Xingda Aluminum Sliding Windows Much like sliding windows open horizontally, by sliding along rails. Smooth, lightweight, and noiseless sliding mechanism; uses silicone or EPDM sealing strips for complete sealing; built-in multi-point locking design; double-layer hollow glass; motorized blinds can be installed in the middle, allowing for complete blackout, semi-transparent, and full-transparent operation with ease.Sliding windows are easy to use, low maintenance, and economical.Sliding windows also offer the possibility of having very large windows which can be easily opened without significant effort.