YY aluminum horizontal sliding windows take up less external and internal space, so this kind of window is very safe and can prevent people from hitting the panel, so it is widely used in houses. YY uses high-end sliding rollers, which can be opened flexibly with a gentle push. The window locks beautifully and cost of aluminium sliding windows is favorable. And if the glass or window frame is damaged or cracked, it's easy to replace, making maintenance simple and cheap.