Aluminum alloy doors and windows are non-corrosive, non-fading, non-shedding, require almost no maintenance, and have extremely long service life. The decorative effect is elegant. The aluminum alloy doors and windows have artificial oxide films and are colored to form a composite film layer. This composite film is not only corrosion-resistant and wear-resistant, but also has a certain degree of fire resistance, and the gloss is extremely high. Aluminum alloy doors and windows have light weight, precise and accurate processing and assembly, so the opening and closing are light and flexible, and there is no noise.
According to the opening method, it can be divided into: fixed windows, upper suspension windows, middle suspension windows, lower suspension windows, side-hung doors and windows, side-hung windows-metamorphic bottom-hung doors and windows, sliding doors and windows, sliding side-hung windows, folding doors, lifting sliding doors, etc.
Window-metamorphosis:
1911-steel window
In 1911, the steel door was introduced to China, mainly from Britain, Belgium and Japan.
After 1925, it prevailed in China. 1970s-Aluminum alloy windows and aluminum alloy doors and windows were introduced to China in the 1970s, but only played a role in foreign embassies in China and a few foreign-related projects. In the later period, aluminum doors and windows formed a relatively developed aluminum door and window product system and established a pillar Product status.
