GB 50222-2017 第4.0.11条
| | In the evacuation corridors and safety exit lobbies of basements or semi-basements in hotel buildings, the ceiling, wall, and floor finish materials shall all be Class A. |
| | In the evacuation corridors and safety exit lobbies of basements or semi-basements in hotel buildings, the ceiling, wall, and floor finish materials shall all be Class A. |
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