
Specification for masonry units Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates) (includes Amendment A1:2015)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
NF EN 771-3:2011 - Identical
EN 771-3:2011 - Identical
SN EN 771-3:2011 - Identical
BS EN 771-3:2011+A1:2015 - Identical
NS EN 771-3:2011 - Identical
UNE EN 771-3:2011 - Identical
ONORM EN 771-3:2015 - Identical