How does the Highway Administration Bureau openly recruit road officials to become full members?

As long as the unit agrees and you are willing, you can give your ID card to the unit, and the unit can go through the formalities of employment confirmation for you (that is, the unit fills out the social insurance form for you, which will be approved by the local human resources security department). If the unit doesn't agree, or if you don't perform well during the probation period, there is no way out.