GB 50243-2016 第2.0.39条
| **** | **Ductwork system air leakage test personnel**: should have received professional training and possess the corresponding qualifications. |
| **** | **Ductwork system air leakage test personnel**: should have received professional training and possess the corresponding qualifications. |
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.