 |
| |||
| pipeless; tubeless | |||
| беструбный: 35 phrases in 8 subjects |
| Construction | 3 |
| Heat exchangers | 1 |
| Oil / petroleum | 9 |
| Oil and gas | 11 |
| Oil and gas technology | 4 |
| Oilfields | 3 |
| Polymers | 1 |
| Technology | 3 |
|
| |||
| pipeless; tubeless | |||
| беструбный: 35 phrases in 8 subjects |
| Construction | 3 |
| Heat exchangers | 1 |
| Oil / petroleum | 9 |
| Oil and gas | 11 |
| Oil and gas technology | 4 |
| Oilfields | 3 |
| Polymers | 1 |
| Technology | 3 |