What do property companies and public security bureaus collectively refer to?

Property companies and public security bureaus are not collectively referred to.

Property management enterprises are organizations established (hired) by real estate developers or hired by owners' committees to manage property, belonging to enterprises. The police station is an agency of public security organs and a government department. The two have nothing to do with each other.

Property management company is an enterprise-type economic entity with corresponding qualifications established in accordance with legal procedures and an independent enterprise legal person. It belongs to a service enterprise and has an equal subject relationship with the owners or users.