| 摘要 |
A golf club head includes a head body, at least one arcuate rail, and at least one counterweight unit. The head body includes a front striking face, and a rear arcuate face that extends rearwardly from two opposite sides of the front striking face and that has top and bottom ends. The arcuate rail projects from an outer surface of the rear arcuate face proximate to the bottom end. The counterweight unit is positioned adjustably on the arcuate rail.
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