Qingdao Sifang is a company that is about to close down, but it has risen slowly because it received a list of manufacturing motor trains in the later period. In the same industry, the technology and management system of Sifang Factory are very strict, so after the bankruptcy storm, the management system is strict, which makes Sifang Factory very competitive now. It can be said that the technical core is in Zhuzhou Institute. However, Sifang Factory is still very good at vehicle assembly. After all, Sifang Factory is the core force for manufacturing motor trains.