| 摘要 |
A hollow golf club head comprises a face portion whose front face defines a club face for striking a golf ball, a crown portion intersecting the club face at the upper edge thereof, and a sole portion intersecting the club face at the lower edge thereof, wherein at least one of the crown portion or the sole portion is made of a rolled steel at least partially, and a rolling direction of the rolled steel is in the range of from 0 to 20 degrees with respect to a front-back direction of the head.
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