At present, most of the aluminum curtain walls used in China are composite aluminum plates and aluminum alloy veneers. The advantages of composite aluminum sheet are light weight, smooth surface, good smoothness, no color difference in the same direction, and excellent on-site workability. It provides conditions for dealing with the variation of exterior wall size caused by on-site building errors, reducing workshop processing period and shortening installation period.
Color coated aluminum is a new type of material that has come into being recently. Its advantages are incomparable strength and changeable color, and it is recycle for environmental protection, what’s more, it is not harmful to human body health. Therefore, it is widely used in the development of doors and windows, sunshine rooms, balcony packaging and other fields. The so-called color coated aluminum mainly refers to color coated aluminum coil, it has a variety of colors, produced from raw aluminum coil after cleaning, chromium, coil coating, baking and other processing, aluminum coil surface with a variety of color paint coating, that is, color coated aluminum coil.