 |
| |||
| fire grading | |||
| классификация по огнестойкости: 9 phrases in 4 subjects |
| Construction | 6 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Technology | 1 |
|
| |||
| fire grading | |||
| классификация по огнестойкости: 9 phrases in 4 subjects |
| Construction | 6 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Technology | 1 |