 |
| |||
| Betriebswasser n; Brauchwasser n; Industriewasser n; Nutzwasser n | |||
| eau de fabrication: 7 phrases in 2 subjects |
| General | 6 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| Betriebswasser n; Brauchwasser n; Industriewasser n; Nutzwasser n | |||
| eau de fabrication: 7 phrases in 2 subjects |
| General | 6 |
| Natural resourses and wildlife conservation | 1 |