| |||
| ébonite f; caoutchouc durci | |||
| |||
| ébonite f; caoutchouc durci ébonite | |||
|
caucho endurecido : 4 phrases in 2 subjects |
| Chemistry | 1 |
| Industry | 3 |
| |||
| ébonite f; caoutchouc durci | |||
| |||
| ébonite f; caoutchouc durci ébonite | |||
|
caucho endurecido : 4 phrases in 2 subjects |
| Chemistry | 1 |
| Industry | 3 |