| |||
| pipe system | |||
| pipework | |||
| tube assembly | |||
| piping system; assembly of tubes | |||
| |||
| piping | |||
|
Rohrsystem : 7 phrases, 3 sujets |
| Amélioration | 1 |
| Construction | 5 |
| Général | 1 |
| |||
| pipe system | |||
| pipework | |||
| tube assembly | |||
| piping system; assembly of tubes | |||
| |||
| piping | |||
|
Rohrsystem : 7 phrases, 3 sujets |
| Amélioration | 1 |
| Construction | 5 |
| Général | 1 |