Fireproof cable tray is made of galvanized steel cable tray coated with steel structure fireproof coating on the inner and outer layers. From the perspective of fire protection, it refers to the constituent materials of fireproof cable tray, which have certain combustion properties and are usually made of flame-retardant or non combustible materials. It is mainly processed from high-quality cold-rolled steel plates and has the characteristics of high bearing capacity and long service life. The cross-section of the steel skeleton is neat, without burrs or sharp corners, the grooves are smooth and flat, and there are no sharp protrusions. Types of fire-resistant cable tray models: fire-resistant trough type tray, fire-resistant ladder type tray, fire-resistant tray type tray, and fire-resistant large-span tray.