The spraying process of cable tray directly affects the anti-corrosion, wear-resistant, fireproof and appearance performance of the tray through the coating thickness and spraying quality. The following is a specific impact analysis: The influence of coating thickness on performance Corrosion resistance: Thicker coatings can effectively isolate moisture and chemicals, extending the service life of bridge structures. For example, a 3mm thick spray painted bridge can provide stronger rust resistance. Wear resistance: Thick coatings are more resistant to friction and impact, reducing the risk of peeling. The brand's spray painted bridge frame is suitable for frequent construction environments due to its uniform thickness. Fireproof: Thick coatings have stronger flame retardancy and can delay the spread of fire. The fireproof spray painted bridge frame of Tiankang brand has a fire resistance temperature of 550 degrees and is suitable for power engineering. Appearance and Protection: Thick coating provides a smoother and more uniform appearance, resistant to UV weathering.