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Bracket and connecting parts: Enhanced durability is achieved through the application of a reinforced high-temperature coating. This coating effectively isolates the bracket and connecting parts from the erosion caused by high temperatures, preventing oxidation and corrosion in long-term high-temperature environments, ensuring stable connections between components.

Shell: Serves to protect the fan and other components, while also directing airflow. The design of the shell often takes aerodynamic principles into account, allowing air to flow more smoothly through the fan, thereby enhancing heat dissipation efficiency.