When you say safety, you mean working in their factory, right? In this case, you need to know the recruitment information of their factory. You can search online. If you can't find it, you can call the personnel administration department to ask.
Of course, the best way is to ask yourself in the factory, or drag an acquaintance to ask. Security is basically done in the guard room of the factory. You should be able to ask in the guard room of the factory. Good luck.