Some documents of school friends don't need to be stamped. If you really need to stamp, it may be a part of the internship registration form. If it is submitted in the internship registration form, it is usually based on signature, and then if it needs to be stamped, it is usually stamped by the enterprise, and then stamped on it in the form of electronic form.

Or if you need to submit a paper version, you can directly stamp a registration form in the paper version, and then use this chapter to indicate that this company has hired you when stamping, and then you need to communicate with your instructor or person in charge about some specific stamping situations.

So the final conclusion is the alumni gang. If it needs to be stamped, it is usually stamped on the internship registration form.