 |
| |||
| act of testing of pipelines (Seregaboss) | |||
| |||
| Piping test certificate (snip.com ABelonogov) | |||
| акт испытания трубопроводов: 9 短语, 2 学科 |
| 油和气 | 4 |
| 石油/石油 | 5 |
|
| |||
| act of testing of pipelines (Seregaboss) | |||
| |||
| Piping test certificate (snip.com ABelonogov) | |||
| акт испытания трубопроводов: 9 短语, 2 学科 |
| 油和气 | 4 |
| 石油/石油 | 5 |