 |
| |||
| closing plug; follower plug; top plug; upper plug; top wiper plug; wiper plug | |||
| top cementing plug | |||
| верхняя цементировочная пробка: 4 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Technology | 2 |
|
| |||
| closing plug; follower plug; top plug; upper plug; top wiper plug; wiper plug | |||
| top cementing plug | |||
| верхняя цементировочная пробка: 4 phrases in 2 subjects |
| Oil / petroleum | 2 |
| Technology | 2 |