PN EN 448:2015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：Polish Committee for Standardization
专家解读视频
基本信息
标准编号： PN EN 448:2015
标准类别：Standard
出版单位：Polish Committee for Standardization
标准页数：32
标准简介
2015 [21/12/2015]2009 [06/04/2009]2005 [05/05/2005]2004 [15/03/2004]1999 [12/03/1999]
标准备注
German translation issued on 28/01/2016. (02/2016)
本标准替代的旧标准
等同采用的国际标准
EN 448:2015 - Identical
