| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enhance corrosion resistance and durability of a golf club head using a magnesium alloy. <P>SOLUTION: The golf club head 1 with a hollow structure is constituted by connecting a first member M1 comprising the magnesium alloy and a second member M2 comprising an alloy other than the magnesium alloy. In the first member M1, a protecting film 12 for protecting the corrosion of the first member M1 is formed on at least an outside surface 10 facing outside of the head and a connecting surface 11 connected to the second member M2. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
