GB 50084-2017 第2.1.14条
| | **Concealed sprinkler head**: A sprinkler head with a decorative cover plate that sits flush with the ceiling. Commonly used in hotel lobbies, upscale guest rooms, and other locations with high aesthetic requirements. |
| | **Concealed sprinkler head**: A sprinkler head with a decorative cover plate that sits flush with the ceiling. Commonly used in hotel lobbies, upscale guest rooms, and other locations with high aesthetic requirements. |
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