 |
| |||
| in-line inspection pig (трубопроводный транспорт Alexander Demidov) | |||
| calibration pig (MichaelBurov) | |||
| диагностический поршень: 4 phrases in 2 subjects |
| Oil and gas | 2 |
| Oil and gas technology | 2 |
|
| |||
| in-line inspection pig (трубопроводный транспорт Alexander Demidov) | |||
| calibration pig (MichaelBurov) | |||
| диагностический поршень: 4 phrases in 2 subjects |
| Oil and gas | 2 |
| Oil and gas technology | 2 |