Profile type U
| REF | A (mm) | B (mm) | C (mm) | L (m) |
| u18 | 18 | 10 | 28 | 2 |
| u30 | 30 | 11 | 40 | 2 |
| u40 | 40 | 13 | 40 | 2 |
| u60 | 60 | 14 | 54 | 2 |
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