| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a soft feeling in striking of a ball. SOLUTION: A golf club head 1, the face 2 to strike a ball with of which is made of a metal material. The face 2 has a rough face 4 formed by making abrasive grains of a metal, average size of which is over 1.0 mm but 2.0 mm or less, collide with the face 2.</p> |
