| 摘要 |
A golf club having a head wherein there is disposed a relatively strong but lightweight unit-cell structure portion between the head's toe and heel portions and immediately behind its generally planar impact face so that the weight of the head is concentrated at the toe, the toe and heel, or the toe, heel and sole portions in order to provide a relatively stiff and wider effective hitting area along with a relatively lower center of gravity, the unit-cell structure in an iron configuration, for example, including a plurality of parallel tubular elements extending generally perpendicular to the plane of the impact face.
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