GB 50222-2017 第4.0.6条
| | In hotel buildings, the partition walls on both sides of an evacuation corridor shall have a combustion performance not lower than Class B1 (flame-retardant) and a fire resistance rating not lower than 1.00 h. |
| | In hotel buildings, the partition walls on both sides of an evacuation corridor shall have a combustion performance not lower than Class B1 (flame-retardant) and a fire resistance rating not lower than 1.00 h. |
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