Let me give you an example. As far as Beijing is concerned, first apply to the local exit-entry administration office and get the form. The form will provide all the materials you need to submit, and then submit them when you are ready. Generally, it will be processed within 15 working days. This is a kind of recognition.

After the endorsement is completed, you need to apply for an entry permit. Individuals can recommend from travel agencies. If you are quick enough, you can get it in a day.

So you can enter the stage.

Need to be reminded that there are a lot of materials needed to handle the endorsement, and it takes some time to handle it.

If you are a student, the procedures should be the same, but the materials submitted are different from those submitted by office workers. For example, office workers need proof of income, and students should be some certificates issued by the school. Anyway, I went to the exit-entry administration office and got the form.

Hope to adopt:)