| 摘要 |
An integral U-shape clamping block structure comprised of a clamping block and a fixation arm respectively extending rearward, and multiple fixation holes and screws being provided sideways on each fixation arm to be incorporated to both sides of a neck of jaw, thus to ensure the clamping strength and expanded width of a clamping surface to improve clamping capability, thus to facilitate combination or retrofit of the clamping block and the neck of jaw
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