What is the distribution area of property cleaning staff equipped on the periphery?

General: cleaning 1 person/1 10,000 square meters ~10.5 million square meters (construction area);

Safety 1 person/1.2000 m2 ~1.8000 m2 (construction area);

Greening 1 person/20,000 m2 ~ 25,000 m2 (building area);

Project 1 person/30,000 m2 ~ 40,000 m2 (building area);

Customer service 1 person/40,000 m2 ~ 45,000 m2 (building area).