According to this new order, Deputy Director Ye made it clear to Li Yixin that the Central Government had established an underground material transportation route from Chongqing to Shanghai and that Stone City, as the final stop For some materials in demand from Kuomintang-controlled areas to Shanghai for sale, material transportation security must be guaranteed. ,But Du Rui usually only deals with familiar merchants in Stone City to collect money, because to be careful, he will not accept money from strangers, let alone show up.