Fireproof bridge is mainly composed of glass fiber reinforced material and inorganic binder composite fireproof board and metal skeleton composite and other fireproof substrate. The outer layer with fireproof coating, fireproof bridge will not burn after fire, and then isolate the fire extension, with extreme outstanding fire retardant effect, but also has a fire-resistant, oil-resistant, corrosion-resistant, non-toxic, non-polluting, easy to install the whole structure, reasonable, long service life, and beautiful, the cable is installed in the cable tray, the environment is neat and easy to clean. Fireproof coating has the characteristics of thin coating, high fire resistance limit and strong adhesion.