GB 50041-2020 第4.5.2条
| **** | Doors from the boiler room to the outdoors shall open outward and shall not be sliding or roller shutter doors; doors directly leading to the hotel evacuation corridor shall be Class A fire doors. |
| **** | Doors from the boiler room to the outdoors shall open outward and shall not be sliding or roller shutter doors; doors directly leading to the hotel evacuation corridor shall be Class A fire doors. |
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