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NF J45-912 (12/1948)
Porte-voix - Passages de ponts et de cloisons.
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Technical characteristics
| Publisher | Association Française de Normalisation (AFNOR) |
| Publication Date | 12/01/1948 |
| Release Date | 12/01/1948 |
| Cancellation Date | 01/01/2026 |
| Page Count | 1 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/12/1948
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