Zhang Hongbing. According to the query of official website, Chang 'an, Guizhou, as of September 9, 2023, and June 27, 20 18, Comrade Liu Hong, deputy director of Chengdu Railway Bureau and deputy head of the leading group for joint defense of railway protection in Guizhou Province, attended the event and made an important speech. Comrade Huang Aimin, deputy mayor of Tongren Municipal People's Government, director of the Municipal Public Security Bureau and leader of the leading group for railway road protection and joint defense, delivered a warm speech. Zhou Yuchun, director of Guizhou Road Protection Office, made a speech on railway safety requirements. Comrade Zhang Hongbing, secretary of the Party Committee of Kaili Railway Depot, delivered a speech, and Comrade Wang Chun, member of the Standing Committee of Wanshan District Committee, secretary of the Political and Legal Committee and director of the Public Security Bureau, issued a propaganda initiative of loving roads and protecting roads.