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| гнутый профиль проката | |||
| гнутый профиль | |||
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| гнутые профили (Roll formed sections may have advantages over extrusions of a similar shapes. Roll formed parts may be much lighter, with thinner walls possible than in the ... WK Alexander Demidov) | |||
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roll- formed sections : 8 phrases, 3 sujets |
| Construction de ponts | 4 |
| Technologie | 3 |
| Travail des métaux | 1 |