It’s divided into left and right, sliding up and down two kinds. Sliding windows have the advantages of not occupying the interior space, beautiful, affordable, and better sealing. Using high-end slide, just gently push, it will open flexibly. Covered with large pieces of glass, it increases the indoor lighting, and also improve the overall morphology of the building. The stress states of the windows are good, and are not easy to damage, but the ventilation area is subject to certain restrictions.
