The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.
液压千斤顶又称机械式千斤顶，是由人力通过螺旋副传动，螺杆或螺母套筒作为顶举件。
The utility model relates to a fast anvil vice which is a simple, convenient and practical new device which can arbitrarily regulate a vice travel without a screw rod rotating.
这是一种不通过螺杆旋转任意调节虎钳行程，简单、方便、实用的新型装置。
The utility model relates to a fast anvil vice which is a simple, convenient and practical new device which can arbitrarily regulate a vice travel without a screw rod rotating.
这是一种不通过螺杆旋转任意调节虎钳行程，简单、方便、实用的新型装置。
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