Advantages of double hung window windows: Beautiful: If the opening leaf of the external casement window is too large, it is not easy to close, and the construction surface is also messy. Half of the windows on the left and right cannot be opened. In addition to the difficulty in convection of the airflow entering the room, there will also be some obstacles in the planning of some internal spaces. The high and low lifting windows are absolutely flexible in the design of height and width. The surface appears beautiful and light, the high and low window leafs can be divided by different lines, the window frame is simple, the lines are delicate, ventilation and lighting are given equal importance, and there will be no visual obstruction.

The up-and-down lifting window is different from the traditional inward opening, outward opening and ordinary push-pull mode. It is one of the two major door and window categories in the world. The broken bridge aluminum of the lifting window series generally adopts the North American injection-type broken bridge insulation technology, and the lifting hardware has a variety of series such as heavy-duty lifting rod hardware. The lifting window has excellent energy-saving and heat preservation, dust-proof and noise-reducing, and excellent wind pressure resistance; beautiful lines, wide viewing angle; no collision with the human body when opened; frame and sash are wrapped, and the window sash has no hidden danger of falling out, and the safety factor is excellent. Different configurations can meet the needs of high-rise commercial or residential projects above 30 floors; they can also meet the needs of super high-rise commercial or residential projects above 60 floors.