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| fond de filet d'un filetage triangulaire cylindrique | |||
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root of a parallel screw thread : 2 do fraz, 1 tematyki |
| Technika i technologia | 2 |
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| fond de filet d'un filetage triangulaire cylindrique | |||
|
root of a parallel screw thread : 2 do fraz, 1 tematyki |
| Technika i technologia | 2 |