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| Senkkopf m | |||
| senkschliesskopf-niet | |||
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| Senkkopf Schrauben etc. | |||
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countersunk head : 49 phrases in 9 subjects |
| Construction | 4 |
| General | 8 |
| Industry | 17 |
| Materials science | 2 |
| Mechanic engineering | 3 |
| Metallurgy | 2 |
| Technology | 8 |
| Transport | 4 |
| Weapons and gunsmithing | 1 |