I would like to ask, is the recruitment unit of state-owned enterprises in the same city reliable?

Not reliable, state-owned enterprises have to go to the website to recruit themselves. Generally, there are only two kinds of state-owned enterprises, one is fresh graduates, and the other is on-the-job recruitment, which is basically unified recruitment by the head office. If it is a branch or grassroots recruitment, it basically belongs to external recruitment. Only those posted by the head office on its own website and those recruited on campus are possible.