| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make an iron club head light in weight and to lower the center of gravity. <P>SOLUTION: The neck part of an iron club head main body is eliminated and a hole in a shape different from a circular shape is formed. A socket for shaft mounting is fitted to the hole and is fixed to the head main body. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
