Smoke screen wall convenient to replace
The utility model discloses a smoke-blocking vertical wall convenient to replace, which relates to the technical field of smoke-blocking vertical walls and comprises a fixing frame, a reel is rotatably connected inside the fixing frame, and the reel and the fixing frame are rotatably connected throu...
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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