GOLF BALL

摘要

PURPOSE: A golf ball is provided, which can increase total flying distance since trajectory becomes low and angle becomes small when falls to the surface. CONSTITUTION: A golf ball comprises: a central part(30); two intermediate layers(20,22) which successively surround the central part; and an external layer(10) which surrounds the intermediate layer. The external layer has thickness of 0.8-1.4mm and hardness of 40-50. The first intermediate layer has thickness of 1.0-2.0mm and hardness 50-65. Each intermediate layer locating under the first intermediate layer has thickness of 1.3-15mm and gradient of 30-70.