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. Optical cable tray apply to construction industry, chemical factory, power projects etc widely. Fireproof cable tray is applicable to under 10kv power cable, as well as the laying of the control cable, lighting and other indoor and outdoor overhead in cable trench and tunnel. Fireproof cable tray is mainly composed of glass fiber reinforced materials and inorganic adhesive composite fire prevention board with metal skeleton compound and other base material of fire prevention. Outer add fire retardant coatings, so fireproof cable tray will not burn when encounter the fire, so as to cut off the fire spread, has the extremely good effect of fire flame retardant, but also has refractory, oil resistance, corrosion resistance, non-toxic, non-polluting. The overall installation is convenient, reasonable structure, long service life, and beautiful. The cable is installed in the cable tray with clean and tidy environment, and easy to clean. Fire retardant coatings have the characteristics of a thin coating, high fire resistance, strong adhesive strength.