The window frame of the fixed window is embedded in the wall body, the glass is installed directly on the window frame, and the joints between the glass and the window frame are sealed with tape befor…

The advantages of flat window are large open area, good ventilation, good sealing, sound insulation, heat insulation, anti-permeability.

The opening and closing of the window sash moves along a certain horizontal direction, so it is called"Flat window".

The performance of the flat window is better than the sliding window, but the sliding window is better than the flat window in the processing, production and operation.