About HANYU H
About OSG Corp., Aichi, JPN
About KAMIYA S
About Tohoku Univ., Miyagi, JPN
About MURAKAMI Y
About OSG Corp., Aichi, JPN
About Tohoku Univ., Miyagi, JPN
About Surface & Coatings Technology
About twist drill
About Other cutting
About 微細結晶
About ダイヤモンド
About コーティング
About 切断工具