The aluminum sliding window does not occupy the indoor space, beautiful appearance, economic price, good sealing. Adopt high-grade slide rail, push gently, open flexibly. With large pieces of glass, not only increase the indoor lighting but also improve the overall appearance of the building. The stress state of the window sash is good and not easy to be damaged, but the ventilation area is limited. https://www.cnwindowsdoors.com/a...tion-sliding-window.html