BS EN 81-22:2021
跟踪更改 电梯建造和安装的安全规则 用于运输人员和货物的电梯 具有倾斜运行路径的乘客和货物乘客电梯
Tracked Changes. Safety rules for the construction and installation of lifts. Lifts for the transport of persons and goods. Passenger and goods passenger lifts with inclined travel path