| 摘要 |
Golf putter has a head made of carbide, (carbo)nitride and/or boride of a IV, V or VI metal in 5-25 wt.% binder phase of Co, Ni and/or Fe. Pref. materials are TiC, TaC, NbC and WC in a binder phase of Co and/or Ni, the material having a density above 10 pref. above 12g./cc. |
