The unit door is open all day. Can you find a property?

Unit doors, also known as cardan doors, residential unit doors, building doors doors and residential doors, are mainly used for high-grade residential doors in residential units.

The unit door mentioned by everyone refers to the door at the general entrance of each unit building in the community, which is also called the entrance door, entrance door and cardan door. The unit door is the entrance of the unit room into the building. Mainly plays a security role. Usually there is intercom function.