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GB 50067-2014 第8.2.5条 Code for fire protection design of garages, repair garages and parking lots

Ventilation and smoke exhaust消防工程

GB 50067-2014 第8.2.5条

| **** | Smoke exhaust ducts shall be made of non-combustible materials and shall not penetrate firewalls. Where penetration is unavoidable, a fire damper shall be installed at the penetration point. |

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