GB 50243-2016 第2.0.32条
| **** | **Duct System Airtightness Test Report**: A document recording the test process and results. |
| **** | **Duct System Airtightness Test Report**: A document recording the test process and results. |
12 hotel MEP experts online, answers cite standard clauses you can verify.
Ask free →Engineering reference only — verify against project conditions and the latest codes.