On the morning of March 8, Zhang Wei and Luo Yong went to a toll station in Zhengzhou for research, visited their partner Liu Wei and observed the operation status of the toll station. The two sides exchanged and discussed the advantages and disadvantages of standardized toll stations in Gansu Province, and the construction ideas of Droitian for standardized toll stations, etc. Meanwhile, they reached a preliminary cooperation intention on the installation of CHUITIAN testing equipment at the site.