The advantages of sliding window are simple and beautiful, large window width, large glass block, wide field of vision, high lighting rate, easy to clean glass, flexible use, safe and reliable, long service life, opening in a plane, occupying less space, convenient installation of screen window, etc. The most commonly used is the sliding window.
缺点：是两扇窗户不能同时打开，最多只能打开一半，通风性相对差一些；有时密封性也稍差。
Disadvantages: two windows can not be opened at the same time, can only open half at most, the ventilation is relatively poor; sometimes the sealing is also slightly poor.
推拉窗 ：分左右、上下推拉两种。推拉窗有不占据室内空间的优点，外观美丽、价格经济、密封性较好。采用高档滑轨，轻轻一推，开启灵活。配上大块的玻璃，既增加室内的采光，又改善建筑物的整体形貌。窗扇的受力状态好、不易损坏，但通气面积受一定限制。
Sliding window: divided into left and right, up and down push-pull two kinds. Sliding window has the advantages of not occupying the interior space, beautiful appearance, economical price and good sealing performance. It adopts high-grade slide rail, which can be opened flexibly with a slight push. With large pieces of glass, not only increase the indoor lighting, but also improve the overall appearance of the building. The forced state of the window sash is good and not easy to be damaged, but the ventilation area is limited.