
Safety Rules For The Construction And Installations Of Lifts - Particular Applications For Passenger And Goods Passenger Lifts - Part 77: Lifts Subject To Seismic Conditions
出版:Italian Standards

专家解读视频
Safety Rules For The Construction And Installations Of Lifts - Particular Applications For Passenger And Goods Passenger Lifts - Part 77: Lifts Subject To Seismic Conditions
出版:Italian Standards
专家解读视频