Cable tray system is made up of cable tray, cable tray bend, bracket, corbel, accessories etc. It used to support the cable in the process of installation and laying. Cable tray is divided into solid trough & cable trunking, cable ladder, ventilated & perforated trough, large span type etc. Cable tray apply to construction industry, chemical factory, power projects etc widely. Alloy aluminum cable tray has beautiful appearance, simple structure,unique style, large load capacity, light weight etc. Alloy aluminum cable tray surface is anodic oxidation, it not only corrosion resistance, and resistance to electric magnetic disturbance, especially blocking interference, this is irreplaceable for a steel cable tray. Alloy aluminum waterproof cable trunking has important practical value in the modern industry, modern national defense, modern high-tech. Excellent high corrosion function is suitable for power plant, chemical, petrochemical and other fields, especially suitable for high corrosive environment. Ladder of extrusion and rail make the appearance of cable tray bright and clean. And the reasonable processing technology and the connection way make installation of cable tray convenient. Cable tray bend used for connecting cable trays when transform branch. It has horizontal, vertical, straight, reducing bend etc and including elbow bend, tee bend, cross bend.