| 摘要 |
Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a base rubber and a quinhydrone. The core has a positive hardness gradient such that the difference between the core's surface hardness and the core's center hardness is 25 Shore C units or greater and/or the core has a diameter of from 1.51 inches to 1.59 inches.
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