DIN EN 448 (2009-07)廢止
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：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
UNI EN 448:2009 - Identical
NBN EN 448:2015 - Identical
NEN EN 448:2009 - Identical
ONORM EN 448:2016 - Identical
SS EN 448 Ed. 4 (2015) - Identical
SN EN 448:2009 - Identical
BS EN 448:2009 - Identical
NEN EN 448:2015 - Identical
EN 448:2015 - Identical
UNE EN 448:2005 - Identical
UNE EN 448:2010 - Identical
NF EN 448:2015 - Identical
BS EN 448:2015 - Identical
SS EN 448 Ed. 3 (2009) - Identical
NF EN 448:2009 - Identical
NBN EN 448:2009 - Identical
