The global output of castings is expected to exceed 115 million tons in 2025, of which the demand for lightweight and high-performance castings in the field of new energy vehicles is strong, and the scale of automotive castings is expected to increase by 10%-12%; Demand for high-end castings in aerospace and rail transportation is expected to grow by 12%-15%. For example,with the continuous improvement of the domestic high-speed rail network and the promotion of international high-speed rail projects, the demand for high-performance castings for the bogie, braking system, and body structure of high-speed rail trains continues to increase.