Corridor sanitation belongs to property.

Property. Property management refers to the owner's * * management of all buildings, buildings, places and facilities within the building division. The peripheral cleaning belongs to the management of the Environmental Sanitation Bureau, which is difficult to manage and can be directly managed, so the cleaning management of the property corridor is better. Cleaning refers to services related to buildings, residential areas, schools, hospitals, factories, streets, building external walls and other buildings.