
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

專家解讀視頻
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
專家解讀視頻