Coverage：All kinds of metal chassis Styles: various industrial equipment cases. Standard: production according to customer's drawing requirements. Other metal chassis materials: the general box adopts aluminum alloy profiles, high quality galvanized steel and so on. Aluminum alloy has the characteristics of light weight, low cost, and mechanical strength (uniform strength). Aluminum alloy is easy to process and heat dissipation. In particular, vehicle engines are particularly suitable for use in aluminum alloys.