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Design description:The desigh of this wrench,through the way of push-pull buttons to adjust the "live" size, so as to adapt to different size number of screw, and with the help of the number identification on the side,users can recognize the screw number clearly.This method facilitate people to use it by dealing with the problem of different size number of screw to one wrench.
Power King Caixia Ji Hui Fang Yuan QIU