
Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods Part 2: Design rules, calculations, examinations and tests of lift components
出版:International Organization for Standardization

专家解读视频
Safety rules for the construction and installation of lifts - Lifts for the transport of persons and goods Part 2: Design rules, calculations, examinations and tests of lift components
出版:International Organization for Standardization
专家解读视频