GB 51309-2018 第4.5.1条
| **** | Luminaires shall be installed securely and reliably; adhesive fixing is not permitted. When suspended, the diameter of the hanger rod shall not be less than 6 mm. |
| **** | Luminaires shall be installed securely and reliably; adhesive fixing is not permitted. When suspended, the diameter of the hanger rod shall not be less than 6 mm. |
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