This document provides guidance on the design, construction and operation of the elevator quality and safety traceability system. This document applies to the construction of the elevator quality and safety traceability system in Boluo County.
T/BLTJBX 06-2021 history
2020T/BLTJBX 06-2021 Guidelines for the Construction of Elevator Quality and Safety Traceability System
2020T/BLTJBX 06-2020 Guidelines for the Construction of Elevator Quality and Safety Traceability System