发明申请
US20080039236A1 Golf ball 失效
高尔夫球

Golf ball
摘要:
Golf ball 2 has a center 5, a mid layer 6, a cover 4 and numerous dimples 8. A product Pm of a volume Vm multiplied by a flexural rigidity Fm in the mid layer 6 and a product Pc of a volume Vc multiplied by a flexural rigidity Fc in the cover meet the following formulae (I) and (II). 1400
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