| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To put the iron golf clubs in a better order as set by developing them in a set with attentions paid to an apparent specific gravity. <P>SOLUTION: The iron golf clubs containing at least one long iron club to a short iron club covering a pitching wedge have heads made up of more than one kind of material which keeps the apparent specific gravity increasing. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
