
Gypsum plasterboards - Definitions, requirements and test methods (includes Amendment A1:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
UNE EN 520:2005 - Identical
UNI EN 520:2009 - Identical
NBN EN 520:2005 - Identical
NEN EN 520:2004 - Identical
BS EN 520:2004+A1:2009 - Identical