| |||
| многослойная алмазная коронка | |||
|
multilayer bit : 5 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |
| |||
| многослойная алмазная коронка | |||
|
multilayer bit : 5 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |