Chongqing Provincial Standard of the People's Republic of China
Latest
DB50/T 1057-2020
Scope
This document is applicable to the evaluation of property services provided by property service personnel to party and government agencies such as cleaning services, customer services, security management, and maintenance of facilities and equipment.
DB50/T 1057-2020 history
2020DB50/T 1057-2020 Evaluation Specifications for Property Management Services of Party and Government Organs