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| étirage de tube à mandrin | |||
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bar drawing : 34 phrases in 8 subjects |
| Agriculture | 1 |
| Earth sciences | 3 |
| Electronics | 1 |
| Industry | 7 |
| Mechanic engineering | 2 |
| Metallurgy | 3 |
| Research and development | 1 |
| Transport | 16 |
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