Aluminum alloy cable trays have the characteristics of beautiful appearance, simple structure, unique style, large load capacity and light weight. After the surface of aluminum alloy cable tray is anodized, it is not only corrosion-resistant, but also anti-electromagnetic interference, especially anti-shielding interference, which is irreplaceable by steel cable trays. Aluminum alloy cable trays have a decisive practical value in modern industry, modern national defense and modern high technology.