
Fire-resistance tests - Elements of building construction Part 9: Specific requirements for non-loadbearing ceiling elements - Technical Corrigendum 1
出版:International Organization for Standardization

专家解读视频
Fire-resistance tests - Elements of building construction Part 9: Specific requirements for non-loadbearing ceiling elements - Technical Corrigendum 1
出版:International Organization for Standardization
专家解读视频