BS EN 448:2009被替代
District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
出版：British Standards Institution
专家解读视频
© British Standards Institution 2013
I.S. EN 448:2009 - Identical
ONORM EN 448:2009 - Identical
NF EN 448:2009 - Identical
NS EN 448:2009 - Identical
SS EN 448 Ed. 3 (2009) - Identical
UNI EN 448:2009 - Identical
SN EN 448:2009 - Identical
DIN EN 448 (2009-07) - Identical
NBN EN 448:2009 - Identical
UNE EN 448:2010 - Identical
NEN EN 448:2009 - Identical
EN 448:2015 - Identical
UNE EN 448:2005 - Identical
