| 摘要 |
PURPOSE: Provided are a golf club head with unchangeable gold color and high strength, an exclusive use rotating shaft connected by exclusive use consent, and a compounding shaft for correcting direction error of ball by torque. CONSTITUTION: Using copper base alloy containing Al, Si, Ag, Co, Ma, Zn, Be, and Cr having enhanced strength and hardness, wedge-type golf putter which has multiple hozels and hitting face at the end of axis of ordinate, or iron golf club head which has one connecting shaft and hitting face at the end of axis of abscissa are manufactured. The golf club head is connected by installing rotating gear in main body and tip and using shaft capable of rotation for axis of ordinate and axis of abscissa, or is connected a shaft made by mono-mandrill methods to iron head. |
