 |
| |||
| ударное стекло (lxu5) | |||
| shock glass: 5 phrases in 3 subjects |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Silicate industry | 3 |
|
| |||
| ударное стекло (lxu5) | |||
| shock glass: 5 phrases in 3 subjects |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Silicate industry | 3 |