| 摘要 |
<p>A golf club (1) composed of a head (2), a shaft (3), a grip and the like, the golf club comprising: a roughened surface portion (4) capable of reducing the value of air resistance by forming a turbulent boundary layer around the head (2) when a golfer swings the golf club (1), the roughened surface portion (4) being formed in a neck portion (5) and a socket portion (6) of the head and at least a portion of the shaft (3) adjacent to the head (2). <IMAGE></p> |
