 |
| |||
| tube d'acier | |||
| |||
| tubes d'acier; tuyaux d'acier | |||
| steel pipe: 14 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Metallurgy | 10 |
| Natural resourses and wildlife conservation | 1 |
| Water resources | 1 |
|
| |||
| tube d'acier | |||
| |||
| tubes d'acier; tuyaux d'acier | |||
| steel pipe: 14 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Metallurgy | 10 |
| Natural resourses and wildlife conservation | 1 |
| Water resources | 1 |