
Methods Of Test For Masonry Units - Part 20: Determination Of Flatness Of Faces Of Aggregate Concrete, Manufactured Stone And Natural Stone Masonry Units
出版:Nederlands Normalisatie Instituut

专家解读视频
2000 AMD 1 2005 [01/07/2005]2000 [01/04/2000]DRAFT 1999 [01/10/1999]
UNI EN 772-20:2005 - Identical
NBN EN 772-20:2000 - Identical
NF EN 772-20:2001 - Identical
ONORM EN 772-20:2005 - Identical
BS EN 772-20:2000 - Identical
DIN EN 772-20 (2005-05) - Identical
I.S. EN 772-20:2000 - Identical
NS EN 772-20:2000 - Identical
UNE EN 772-20:2001 - Identical
SS EN 772-20:2000 - Identical
SN EN 772-20:2000 - Identical