NEN EN 12321:2003现行
Underground Mining Machinery - Specification For The Safety Requirements Of Armoured Face Conveyors
出版：Nederlands Normalisatie Instituut
专家解读视频
2003 + A1 2009 [01/04/2009]2003 [01/05/2003]
2003 Edition Re-Issued in April 2009 & incorporates AMD 1 2009. (05/2009)
SS EN 12321 Ed. 1 (2003) - Identical
UNE EN 12321:2003 - Identical
NS EN 12321:2003 - Identical
BS EN 12321:2003+A1:2009 - Identical
SN EN 12321:2003 - Identical
DIN EN 12321 (2003-08) - Identical
NBN EN 12321:2003 - Identical
NF EN 12321:2003 - Identical
I.S. EN 12321:2003 - Identical
UNI EN 12321:2004 - Identical
ONORM EN 12321:2003 - Identical
ONORM EN 12321:2009 - Identical
UNI EN 12321:2009 - Identical
DIN EN 12321 (2009-07) - Identical
