| 摘要 |
A wood-type golf club head has a spherical body with an arm extending radially outward thereof. The arm is bored to receive the shaft whereby the axis of the shaft passes through the center of the body. The hitting face of the body is formed with vertical roll and horizontal bulge. The vertical roll is defined by an arc having a radius of 4.75 inches centered at a point (50) located within the club head. The horizontal bulge is defined by an arc having a radius of 6 inches centered on a point (46) located outside the club head.
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