How can I complain if the security guard of the ironclad factory is shut down?

Complain directly to the property company, either in person or by letter or phone.

You can also complain directly to the public security management unit.

It is best to have specific events in the complaint, the content of the complaint should be clear, and relevant evidence should be kept. Before making a complaint, it is recommended to look at or understand some security performance requirements, so that the complaint will be more targeted.