Germany 65 Series Energy Saving Sliding Sash Window
The user can achieve window inner open and upper suspension opening and closing through rotating the window handle. When opening the window, the window leaf can be extended to 180 degrees at maximum, having good visual effect, broader than the vision field of the ordinary window, and achieving good air circulation. After the window is closed, it has very good seal, sound insulation and thermal insulation effect. When the windows is in the upper suspension status, it doesn't occupy the indoor space to achieve good ventilation and prevent the thief from entering from outside. When the window is in the inner open status, the window glass can be easily cleaned at indoor.