Position limit device is employed to solve the problem of corrugation by reverse-drawing so that quality of the part can be ensured.
利用限位装置成功解决反拉深起皱问题，保证了零件质量。
The invention relates to a single-phase electric hoist in lifting equipment, in particular to a single-phase electric hoist with a lower limit device.
本发明涉及升降起重设备中的单相电动葫芦，特别涉及一种带下限位装置的单相电动葫芦；
Owing to the movable disc and the locking device, the paper roll shaft with the position limit device can be adjusted according to the width of the paper roll, thus being extremely convenient;
由于本发明的带有限位装置的纸卷轴通过设置移动式圆盘和锁紧 装置，能根据纸卷的宽度调节，非常方便；
Owing to the movable disc and the locking device, the paper roll shaft with the position limit device can be adjusted according to the width of the paper roll, thus being extremely convenient;
由于本发明的带有限位装置的纸卷轴通过设置移动式圆盘和锁紧 装置，能根据纸卷的宽度调节，非常方便；
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