
Methods Of Test For Masonry Units - Part 2: Determination Of Percentage Area Of Voids In Perforated And Hollow Masonry Units, By Paper Indentation
出版:British Standards Institution

专家解读视频
Methods Of Test For Masonry Units - Part 2: Determination Of Percentage Area Of Voids In Perforated And Hollow Masonry Units, By Paper Indentation
出版:British Standards Institution
专家解读视频