| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a surface treatment method to adjust a golf club head such that the golf club head has excellent corrosion resistance and wear resistance and also has a beautiful appearance.SOLUTION: A surface treatment method for a golf club head made of carbon steel has, as basic steps, one nitriding step and two oxidizing steps. The surface treatment method also has, before the basic steps or therebetween, steps for polishing, sand blast, washing or the like, and after the basic steps, steps for polishing, oil immersion or the like.</p> |
