There is a significant demand for high-performance aluminum alloy materials in high-speed trains and urban subways in the field of rail transit. With the improvement of the high-speed rail network and the increase in travel demand, the demand for high-speed rail high-speed trains and urban subway vehicles is accelerating, and the proportion of investment in purchasing locomotives and vehicles is steadily increasing. Under the "eight vertical and eight horizontal" plan, the high-speed rail network has been further improved, and on this basis, Dongze actively develops customized products for the rail transit industry and successfully delivers them.