About WATANABE YU
About ユシロ化学工業
About material
About cutting(machining)
About cutting oil
About aqueous solution
About tool life
About lifetime extension
About carbon fiber reinforced plastics
About titanium
About processing resistant material
About difficult cutting
About aqueous solution
About Cutting in general
About 難削材
About CFRP
About チタン
About 切削加工
About 油剤