 |
| |||
| core pipe (eternalduck) | |||
| труба сердечника: 10 phrases in 5 subjects |
| Hydraulic engineering | 2 |
| Mechanic engineering | 1 |
| Mining | 1 |
| Pipelines | 3 |
| Technology | 3 |
|
| |||
| core pipe (eternalduck) | |||
| труба сердечника: 10 phrases in 5 subjects |
| Hydraulic engineering | 2 |
| Mechanic engineering | 1 |
| Mining | 1 |
| Pipelines | 3 |
| Technology | 3 |