In the integration of heat dissipation and aesthetic design of electronic equipment, the hollow cover plate plays a vital role. It is cleverly installed on the chassis cover. As a key component of the chassis cover, the ventilation grilles adopts a unique hollow cover plate structure, which not only reduces the overall weight but also improves the air circulation efficiency. Its well-designed ventilation holes can effectively guide the hot air out to ensure the stable operation of the equipment. Whether it is an industrial control cabinet, a server chassis, or various electronic instruments, the ventilation grille is the best choice to improve the heat dissipation performance and optimize the performance of the equipment.