
Methods of test for masonry units Part 1: Determination of compressive strength; German and English version EN 772-1:2011+A1:2015
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Methods of test for masonry units Part 1: Determination of compressive strength; German and English version EN 772-1:2011+A1:2015
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频