发明名称 Golf club shaft, production method therefor, and golf club therewith
摘要 A golf club shaft includes a base made of a metal material, a nickel plated layer formed on the base, a chrome plated layer formed on the nickel layer, and a coating layer formed on the chrome plated layer. The chrome plated layer has a surface roughness Ra of 0.1 to 0.3 μm and a thickness of 0.2 to 1 μm.
申请公布号 US8357055(B2) 申请公布日期 2013.01.22
申请号 US20090453666 申请日期 2009.05.18
申请人 NHK SPRING CO., LTD.;YATSUDA NARUKI 发明人 YATSUDA NARUKI
分类号 A63B53/12 主分类号 A63B53/12
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