| 摘要 |
<p>A golf club is provided to improve hitting force, to secure a stabilized and improved flying distance, and to have uniform quality. A graphite golf club is formed by a mandrill, and includes a club head(140) and a club shaft including a coupling portion(125) and a body portion(131). The coupling portion and the body portion include a lower sheet layer and an upper sheet layer. The lower sheet layer comes into contact with the mandrill and is overlapped. The upper sheet is overlapped on the upper part of the lower sheet layer. The lower sheet layer forms a sheet joint portion whose diameter is reduced abruptly. Any one of the lower and upper sheet layers includes a joint portion that is cut and overlapped between the sheet joint portion.</p> |
