In May 2005, Hu Zhengwei went out of the school and left behind the most beautiful Shaohua in the construction of key projects such as Kunming Guangzhou, Dali, Beijing Guangzhou, and Beijing Harbin reconstruction. He participated in the development of the overall moving tool for railway signal cabinet, which improved the work efficiency by 30%. He proposed a "well" shaped bracket to improve the cable winding efficiency, saving 219000 yuan in cost. The Portable Railway Signal General Simulation Disk developed by him was awarded a utility model patent. Finally, he won the honorary title of National Model Worker in 2020@ Beijing Construction Company of China Railway Electrification Bureau