How many maintenance personnel does a property unit need?

According to the format and grade of the project and the contract requirements, it will be clearly stated in the property contract.

Or when formulating the service plan, it is calculated that there are many people in high-end residential areas, at least 5~7, about 5 ordinary residential areas and 3 policy rooms. The signatory does not include the operation post, and there are at least 3 operators.