GB 50242-2002 第2.0.7条
| | **Drain plug**: A fitting installed at the drain outlet of fixtures such as sink, laboratory sink, service sink, and floor drain, used to prevent larger debris from entering the drainage pipe. |
| | **Drain plug**: A fitting installed at the drain outlet of fixtures such as sink, laboratory sink, service sink, and floor drain, used to prevent larger debris from entering the drainage pipe. |
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