Image:Sleeve in concrete.jpg
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 00:39, 17 June 2007 | 3,469×2,352 (882 KB) | Achim Hering | ({{Information |Description=Steel Sleeve in concrete floor to create an opening for a pipe penetration. Uneven Packing = incomplete firestop. |Source=self-made |Date=16. June 2007 |Author= Achim Hering }} ) |
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