
Concrete Masonry Units (normal-weight Concrete) - Part 100: Masonry Units With Specific Properties
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Concrete Masonry Units (normal-weight Concrete) - Part 100: Masonry Units With Specific Properties
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻