DIN EN 12951 (2005-02)现行
Prefabricated accessories for roofing - Permanently fixed roof ladders - Product specification and test methods
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
ONORM EN 12951:2007 - Identical
NEN EN 12951:2004 - Identical
SS EN 12951 Ed. 1 (2004) - Identical
UNE EN 12951:2006 - Identical
NS EN 12951 Ed. 1 (2005) - Identical
UNI EN 12951:2005 - Identical
NF EN 12951:2005 - Identical
NBN EN 12951:2005 - Identical
BS EN 12951:2004 - Identical
SN EN 12951:2004 - Identical
I.S. EN 12951:2005 - Identical
