| 摘要 |
A golf club head composed of a one-piece body having a front side, a rear side, a top and a bottom, and provided with a groove that extends from the rear side to locally reduce the cross-section of the body and to form the body into a heel sub-head adjacent a hosel and a toe sub-heads remote from the hosel, the sub-heads meeting at a joint plane in the body, the joint plane extending from the base of the groove to the front side. |
