SECTION E : ELECTRICITY, GAS, STEAM AND AIRCONDITION SUPPLY |
Division 37 : Sewerage |
Group | Class | Sub-class | Description |
370 | | | Sewerage |
| 3700 | | Sewerage |
| | 37001 | The operation and maintenance of sewer systems |
| | 37002 | Collecting and transporting of human or industrial waste water or rain water by means of sewerage networks, collectors, tanks and other means of transport (sewage vehicles etc.) |
| | 37003 | Treatment of waste water or sewer by means of physical, chemical or biological processes |