NS EN 752-7 Ed. 1 标准详情
- 标准号:NS EN 752-7 Ed. 1
- 中文标题:
- 英文标题:Drain And Sewer Systems Outside Buildings - Part 7: Maintenance And Operations
- 标准类别:挪威标准NS
- 发布日期:
Applies to drain and sewer systems operating essentially under gravity, from the point where the sewage leaves a building or roof drainage system or enters a road gully, to the point of discharge into a treatment works or receiving water. Includes dr
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