Is the recruitment of Chengdu Railway Bureau a formal contract?

The recruitment of Chengdu Railway Bureau is a formal contract. Without the establishment of the national railway, they are laborers. Specifically, there is a gap in treatment. Chengdu Railway Bureau will recruit train attendants for the society, as well as some middle schools or higher vocational schools. Recruited conductor or contract worker. Well done, you can take the train conductor exam and become a regular employee in the future.