Generally speaking, there will be no employment notice unless you take the initiative to submit your resume and go to the company (factory) for an interview. In the Pearl River Delta, there are many frauds in the name of others, so job seekers should be cautious.
If you are looking for a job, you will generally choose to go to the job fair in the market, where you can have face-to-face communication with the personnel department of the employer and get to know each other before you have a second interview. Only after the second interview is successful will you have an employment form. You got it?
Good luck in finding a job.