| |||
| рессорный центратор | |||
|
spring centralizer : 8 phrases in 4 subjects |
| Drilling | 1 |
| Oil / petroleum | 4 |
| Oil and gas technology | 2 |
| Sakhalin | 1 |
| |||
| рессорный центратор | |||
|
spring centralizer : 8 phrases in 4 subjects |
| Drilling | 1 |
| Oil / petroleum | 4 |
| Oil and gas technology | 2 |
| Sakhalin | 1 |