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.

double hung windows are a common type of indoor door and window products. They have excellent energy-saving and heat-insulating, dust-proof and noise-reducing, and excellent wind pressure resistance. They have beautiful lines and a wide viewing angle. They will not collide with the human body when opened. The frame and sash are wrapped, so there is no risk of the sash falling outwards. They have excellent safety coefficients and many other advantages. They are widely used in high-rise buildings in North America.

Advantages of sliding windows Exquisite facade, reasonable opening and ventilation methods Traditional European sliding windows open left and right, while sliding windows open vertically up and down. Normally, whether it is a sliding window or a sliding window, the opening area will not exceed 1/2, but after changing from sliding left and right to lifting up and down, not only is the opening method more scientific and reasonable, but the human comfort is also greatly improved. Because, in my country's building openings, the height from the ground is generally 900-1000mm. If the height of the sliding window is designed to be 1600-1800mm, the opening height of 1/2 is 800-900mm, which is close to the height of the human body, and the ventilation and comfort are greatly enhanced.

The upper and lower sliding windows have more design flexibility in the slenderness ratio of height to width, and the facade appears beautiful and light. The upper and lower window sashes can be divided by different lines. The window frame is simple and the lines are delicate. Ventilation and lighting are equally important without visual obstruction. The upper and lower window sashes can be adjusted according to the ventilation needs. Because they are not casement or sliding, the setting of screens is also relatively easy, and it is also easy to escape in an emergency. If designed as a continuous lifting window, you can fully enjoy natural ventilation. It is another choice for designers between casement windows and sliding windows.

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.

Aluminum outward opening casement window with black colour. Customized RAL colour is available With thermal break good insulation. With stainless screen inward opening Double glass good energy saving and  Noise proof Multi-locking point system 

Fixed windows are windows that are usually made of glass directly inlaid on the window frame or the window sash is fixed on the window frame and cannot be opened. They are only used for lighting and viewing. They are usually used for lighting windows in corridors, stairwells and certain parts of general windows.

Aluminium single hung window with white color Customized RAL colour is available With thermal break good insulation. With stainless screen Double glass good energy saving and  Noise proof Smooth vertical sliding panel eash opening

The main body of the heat-insulating aluminum alloy is made of aluminum, and a plastic profile cavity is used as the heat-insulating material in the middle of the profile. This innovative structural design takes into account the advantages of plastic and aluminum alloy materials, while meeting various requirements for decorative effect, strength and aging resistance of doors and windows. The thermally insulated broken bridge aluminum-plastic profile can realize the three-way sealing structure of doors and windows, reasonably separate the water vapor cavity, successfully achieve equal pressure balance of air and water, and significantly improve the water and air tightness of doors and windows. The air tightness of insulated aluminum doors and windows is better than that of any aluminum or plastic windows. It can ensure that indoor window sills and floors in areas with strong wind and sand are dust-free; it can ensure that residents 50 meters on both sides of the highway are not disturbed by noise; and the thermal conductivity is better than Non-insulated aluminum alloy doors and windows reduce the cost by 40 to 70%.