Will big factories put up job notices on the street?

When there is a shortage of people, any recruitment method will be used, whether it is a big factory or not, so even a big factory may post recruitment notices on the street.

If you are worried that the recruitment information is false or fraudulent, you can call to ask about the work place, job content and salary, then find a friend to accompany you to that place privately to see if there is really the house number of this factory, and finally make an appointment for an interview in the factory. Then no matter where you go for an interview, you'd better tell your friends and relatives, just in case.