 |
| |||
| test certificate | |||
| акт проведения испытаний: 14 phrases in 6 subjects |
| Energy industry | 1 |
| Karachaganak | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 5 |
| Quality control and standards | 1 |
| Sakhalin | 1 |
|
| |||
| test certificate | |||
| акт проведения испытаний: 14 phrases in 6 subjects |
| Energy industry | 1 |
| Karachaganak | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 5 |
| Quality control and standards | 1 |
| Sakhalin | 1 |