About TARVAINEN Sayuri
About WATANABE YUJI
About 塑性加工春季講演会講演論文集
About ultrasonic vibration
About polishing (machining)
About burnishing
About brittle material
About zirconium oxide
About mirror finishing
About high-hard material
About machining
About burnishing
About zirconia
About hammering oscillating mechanism
About Grinding
About 超音波振動
About 高硬度脆性材料
About バニシング