The information provided by Du Xiaodi gives Cao Guangshan new enlightenment. He began to study the tearing of the steel plate again. At the same time, he contacted Cai Xingquan by long-distance telephone and asked him about the relevant technology. Cai Xingquan heard that Li Qingshan and Du Xiaodi were at the scene. He said that these people can be trusted, especially Du Xiaodi. He called Du Xiaodi "little girls" one by one. I don't know what kind of younger relatives Du Xiaodi is.
Wang Jianguo's previous suggestions were mercilessly ignored. Cao Guangshan, combined with Cai Xingquan's advice, discussed with Li Qingshan, Du Xiaodi and others again and put forward a set of reliable