Is it allowed to enter the perforated property of the home line?

Not allowed. The property management company will not directly report the behavior of the owner privately drilling holes in the beam. It is recommended to negotiate with the owner privately, sign a rectification notice or commitment letter, and order the rectification to be in place within a time limit. If the owner refuses to implement or complain everywhere, the property management company will sort out the evidence and report it to the Housing Authority, Housing and Construction Bureau and other relevant departments, and let the formal departments handle it directly.