The main part adopts 2.0mm high quality cold rolled steel plate, and the load-bearing part adopts 4.0mm hot rolled steel plate. The cabinet adopts automatic welding, featuring reliable strength. The surface is subject to electrophoresis and powder spraying technology, which greatly improves its corrosion resistance. The bottom is sprayed with PVC plate armour, which can effectively protect the cabinet from stone bumping. The cabinet is sealed and its waterproof grade is IP67, which meets the requirements for battery protection.