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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