Composite aluminum panel curtain wall is more and more common, it has many advantages, composite aluminum plate is characterized by light weight, with appropriate steel properties, can reduce vibration and noise, and its decorative effect is better, the surface can be anti-corrosion, painting, printing and other secondary processing, it can be comparable with aluminum plate, while the cost is much cheaper. Materials are shipped out of the factory, generally pass many processes, such as corrosion resistance, bending, compression. It is safe and reliable in use.