GB 50041-2020 第4.2.9条
| **** | The floor in the boiler room shall be made of non-combustible materials, level and slip-resistant, and shall be provided with drainage channels or floor drains for easy washing and drainage. |
| **** | The floor in the boiler room shall be made of non-combustible materials, level and slip-resistant, and shall be provided with drainage channels or floor drains for easy washing and drainage. |
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