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机用虎钳具有结构简单、装夹可靠等优点。但其钳口距是通过转动手柄,使活动钳体作轴向运动来调整。一般需转许多转,尤
Machine vices have the advantages of simple structure, reliable clamping. However, the distance between the jaws is adjusted by turning the handle to make the movable clamp body move axially. Generally need to turn many, especially