DIN EN 253/A2 标准详情
- 标准号：DIN EN 253/A2
- 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：德国标准DIN
- 发布日期：
