| 摘要 |
A head of golf club having a hollow body with a first semi-phere integrally formed therein and a filling line integrally formed between the first semi-sphere and the bottom of the body portion, a face welded on a front end the body, a float received between the first semi-sphere and a second semi-sphere which is combined with the first semi-sphere by welding, and a casing welded on a back end of the body portion, whereby the center of mass of the golf club is self-optimizing, and the structure of the golf club head is simple and firm.
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