UNI EN 253:2016现行
District Heating Pipes - Preinsulated Bonded Pipe Systems For Directly Buried Hot Water Networks - Pipe Assembly Of Steel Service Pipe, Polyurethane Thermal Insulation And Outer Casing Of Polyethylene
出版：Italian Standards
专家解读视频
2016 [21/04/2016]2013 [04/04/2013]2009 [09/07/2009]2007 [25/09/2007]2006 [23/03/2006]2003 [01/09/2003]1995 [30/11/1995]
SS EN 253:2009 - Identical
NF EN 253:2009 - Identical
EN 253:2009 - Identical
NEN EN 253:2009 - Identical
NS EN 253:2009 - Identical
SN EN 253:2009 - Identical
NBN EN 253:2009 - Identical
UNE EN 253:2010 - Identical
BS EN 253:2009+A2:2015 - Identical
DIN EN 253 (2015-12) - Identical
ONORM EN 253:2015 - Identical
I.S. EN 253:2009 - Identical
