About TAKAHASHI WATARU
About 住友金属工業
About OKADA MINORU
About 住友金属工業
About SHIDA YOSHIAKI
About 住友金属工業
About KUWAYAMA TETSUYA
About 住友金属工業
About SAKAGAMI MASAAKI
About 住友金属工業
About titanium base alloy
About Dispersion hardening alloys
About 炭化物
About 耐摩耗
About チタン合金
About 開発