 |
| |||
| elastomer internal-helix stator (фирмы Norton Christensen) | |||
| stator | |||
| elastomer internal-helix stator (inplus) | |||
| статор турбобура: 2 phrases in 2 subjects |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
|
| |||
| elastomer internal-helix stator (фирмы Norton Christensen) | |||
| stator | |||
| elastomer internal-helix stator (inplus) | |||
| статор турбобура: 2 phrases in 2 subjects |
| Oil and gas | 1 |
| Oil and gas technology | 1 |