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. Fiber optic cable tray apply to construction industry, chemical factory, power projects etc widely. Stainless steel cable tray is superior on the basis of all kinds of cable tray. Focus on improved in terms of heat insulation, cooling, fire prevention. Its structure is complex, double insulation, flame retardant, fire prevention, both inside and outside at the same time has the advantages of ventilation, cooling, self-quenching fire etc. The internal groove of stainless steel cable tray is to use glass fiber reinforced plastics and a variety of flame retardant of fireproof material, the surface is coated with fireproof paint, the standards of horizontal flame, vertical flame, dark hot length etc have achieved domestic and international leading level.