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| channel; channel section; rolled steel channel | |||
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| U-section; channel-bar; U-channel | |||
| channel section | |||
| channel; u-profile | |||
| U Profil: 12 phrases in 4 subjects |
| Chemistry | 1 |
| Construction | 3 |
| Mechanic engineering | 7 |
| Metallurgy | 1 |
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