The steel honeycomb ventilation panel has higher physical strength than the aluminum honeycomb ventilation panel, and is generally used in military-grade applications where electromagnetic shielding requirements are high. The commonly used steel honeycomb materials are SUS304 and SUS316, the common honeycomb aperture is 3.2mm, and the honeycomb core thickness is 12.7mm. The surface can be surface treated by electroplating or electroless nickel plating, tin plating, etc. to meet the reliability requirements in harsh environments. Due to the stable shielding effect and high anti-corrosion performance of steel honeycomb panels, its application industries are mainly: high-frequency test equipment, military communications, radar, aircraft turbine air intake protection, and thermal power stations.