 |
| |||
| 统一标准特细螺纹美 | |||
|
unified extra-fine : 6 do fraz, 6 tematyki |
| Lotnictwo | 1 |
| Mechanika | 1 |
| Nauka o ziemi | 1 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 1 |
| Wiercenie | 1 |
|
| |||
| 统一标准特细螺纹美 | |||
|
unified extra-fine : 6 do fraz, 6 tematyki |
| Lotnictwo | 1 |
| Mechanika | 1 |
| Nauka o ziemi | 1 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 1 |
| Wiercenie | 1 |