 |
| |||
| extra coarse pitch thread; thread of steep lead angle | |||
|
pas rapide : 10 phrases in 3 subjects |
| General | 4 |
| Mechanic engineering | 5 |
| Technology | 1 |
|
| |||
| extra coarse pitch thread; thread of steep lead angle | |||
|
pas rapide : 10 phrases in 3 subjects |
| General | 4 |
| Mechanic engineering | 5 |
| Technology | 1 |