| 摘要 |
A golf club head is formed of an alloy steel which comprises at most 0.2 wt.% of C, 0.05-1.0 wt.% of Si, at most 0.5 wt.% of Mn, 3.0-8.0 wt.% of Ni, 10.0-20.0 wt.% of Cr, 3.0-8.0 wt.% of Mo and 10.0-20.0 wt.% of Co, the remainder being substantially Fe, and has a metallic texture composed principally of martensite. |
| 申请人 |
SHINTOMI GOLF CO. LTD., TOKIO/TOKYO, JP;KASCO CORP., KAGAWA, JP |
发明人 |
YOSHIDA, DAISAKU, KITA-GUN, KAGAWA-KEN 761-01, JP;YAMANO, KATSUMI, C/O KASCO CORPORATION, OKAWA-GUN, KAGAWA-KEN 769-21, JP |
