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This design is a section live wrench improved design, the change of traditional live wrench head and handle in the same horizontal line design forms, Will live on the head and handle wrench dislocation design, make they had some difference of distance, not in the same horizontal line. So in use process won't because the handle with wrench head in the same plane not convenient usage, make easily injured hand. After improved handle not only protect hand or work efficiency.
Jiangxi University of Finance and Economics
Nan chang, China