UNI EN 448:2016现行
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：Italian Standards
专家解读视频
2016 [21/04/2016]2009 [14/05/2009]2003 [01/09/2003]1995 [31/12/1995]
UNE EN 448:2017 - Identical
NF EN 448:2015 - Identical
SN EN 448:2016 - Identical
NS EN 448:2015 - Identical
DIN EN 448 (2016-02) - Identical
ONORM EN 448:2016 - Identical
NEN EN 448:2015 - Identical
SS EN 448 Ed. 4 (2015) - Identical
I.S. EN 448:2015 - Identical
NBN EN 448:2015 - Identical
BS EN 448:2015 - Identical
EN 448:2015 - Identical
UNE EN 448:2010 - Identical
