GB 7588-2003 第3.12条
| | **Maintenance control device**: control equipment used for elevator maintenance operation. Hotel elevator maintenance speed ≤0.63 m/s (per Clause 14.2.1). |
| | **Maintenance control device**: control equipment used for elevator maintenance operation. Hotel elevator maintenance speed ≤0.63 m/s (per Clause 14.2.1). |
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