
Safety of unshielded tunnel boring machines and rodless shaft boring machines for rock - Safety requirements (includes Amendment A2:2008)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
SN EN 815:1997 - Identical
ONORM EN 815:2009 - Identical
NS EN 815:1996 - Identical
NBN EN 815:1996 - Identical
NEN EN 815:1996 - Identical
UNE EN 815:1997 - Identical
SS EN 815:1996 - Identical
NF EN 815:1996 - Identical