PREN 253-2007 标准详情
- 标准号：PREN 253-2007
- 中文标题：
- 英文标题：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
- 标准类别：欧盟标准EN
- 发布日期：
