The invention has the advantages of simple and reasonable structure, convenient production, convenient use and easy replacement, and can change the reciprocating stroke of the driving nut.
本发明结构简单、合理，方便生产，方便使用，易于更换，可以改变传动螺母的往复行程。
The invention has the advantages of simple and reasonable structure, convenient production, convenient use and easy replacement, and can change the reciprocating stroke of the driving nut.
本发明结构简单、合理，方便生产，方便使用，易于更换，可以改变传动螺母的往复行程。
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