Invention Grant
US09333403B2 Heat treated golf club 有权
热处理高尔夫球杆

Heat treated golf club
Abstract:
A heat treated golf club head is disclosed herein. More specifically, the present invention discloses a golf club head wherein the striking face portion and the body portion are heat treated differently to achieve different hardness, strength, and Young's modulus (E) at the two portions to improve the performance of the golf club head.
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