
En 772 Methods Of Test For Masonry Units - Part 19 - Determination Of Dimensional Stability Of Large Clay Masonry Units (pren 772-19)
出版:British Standards Institution

专家解读视频
En 772 Methods Of Test For Masonry Units - Part 19 - Determination Of Dimensional Stability Of Large Clay Masonry Units (pren 772-19)
出版:British Standards Institution
专家解读视频