Who do you usually look for when you go to a factory to apply for a job? Ask the doorman or someone, and then who will take me in to apply?

Yes, you can ask the doorman directly, and the doorman will arrange for you to go in and find the relevant department to fill out the form for an interview. There is no need to be shy when looking for a job. It's hard to find a job now. People in the company don't know how welcome you are. They are under great pressure because they can't find a job. I am urged by other departments every day, and I am anxious. So, when you are looking for a job, try to calm down and don't worry about anything.