 |
| |||
| National form thread | |||
| нормальная американская резьба: 22 phrases in 8 subjects |
| Drilling | 2 |
| General | 2 |
| Mechanic engineering | 3 |
| Oil / petroleum | 1 |
| Pipelines | 4 |
| Polymers | 2 |
| Rail transport | 7 |
| Technology | 1 |
|
| |||
| National form thread | |||
| нормальная американская резьба: 22 phrases in 8 subjects |
| Drilling | 2 |
| General | 2 |
| Mechanic engineering | 3 |
| Oil / petroleum | 1 |
| Pipelines | 4 |
| Polymers | 2 |
| Rail transport | 7 |
| Technology | 1 |