The development of windows &doors
Doors and windows are an indispensable part of the living room. So far, doors and windows have experienced four eras: wood, steel, aluminum alloy, and plastic steel doors and windows. Wooden doors and windows are moderately priced, have poor appearance, poor airtightness, are afraid of fire and flammability, deform and crack, and are only suitable for low-grade, general-purpose applications, high maintenance costs, and short service life. Steel welded doors and windows are low in price, low grade, easy to corrode, easy to deform, high maintenance costs, short service life, and are facing elimination. Aluminum alloy doors and windows have good flame retardancy, luxurious appearance, but poor integrity, easy to deform and corrode, and have poor thermal insulation, poor thermal insulation, and poor sound insulation.
Compared with wooden doors and windows, steel doors and windows, aluminum alloy doors and windows have the following characteristics:
1. Light weight, strong and durable. Aluminum alloy doors and windows are about 50% lighter than steel doors and windows; they are more corrosion-resistant than wooden doors and windows, and are not easy to decay.
2. Good sealing performance. Aluminum alloy doors and windows have high airtightness, water tightness and sound insulation are better than wooden doors and windows and steel doors and windows.
3. The color is bright and beautiful. The frame materials of aluminum alloy doors and windows are treated by ammoniating and coloring, and can be colored silver, bronze, dark red, etc., and can be colored with colored patterns. The aluminum alloy doors and windows made of it have beautiful appearance, smooth surface, bright and firm color, and enhance the decorative effect of indoor and outdoor facades.
windows &doors
