| |||
| вулканизация серой | |||
| серная вулканизация | |||
|
sulphur vulcanization : 10 phrases in 5 subjects |
| Chemistry | 1 |
| Leather | 6 |
| Makarov | 1 |
| Resins | 1 |
| Technology | 1 |
| |||
| вулканизация серой | |||
| серная вулканизация | |||
|
sulphur vulcanization : 10 phrases in 5 subjects |
| Chemistry | 1 |
| Leather | 6 |
| Makarov | 1 |
| Resins | 1 |
| Technology | 1 |