本实用新型公开了一种吊灯升降装置，属于机械技术领域。
The utility model discloses a suspension lamp lifting and lowering mechanism, which pertains to the mechanical technique field.
本实用新型公开了一种吊灯升降装置，属于机械技术领域。
The utility model discloses a suspension lamp lifting and lowering mechanism, which pertains to the mechanical technique field.
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