| 摘要 |
<p>This invention relates to a method of manufacturing golf club shafts to required torsional stiffness and also to sets of golf clubs or shafts therefor matched with regard to torsional stiffness. The golf clubs or shafts therefor may in addition be matched with regard to other torsional characteristics, for example overall torsional deflection per unit torsional load or torsional vibrational frequency. <IMAGE></p> |
