BS EN 448-2019 标准详情
- 标准号：BS EN 448-2019
- 中文标题：
- 英文标题：District heating pipes. Bonded single pipe systems for directly buried hot water networks. Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene
- 标准类别：英国标准BS
- 发布日期：29 October 2019
