About YAMAGUCHI HIROKI
About ゴーショー
About sample fair
About lathe turning
About automatic lathe
About multi-spindle machine tool
About back processing
About quill
About computer numerical control
About machine tool fair
About turning
About computer numerical control
About parameterization
About Turning,boring
About 工作機械
About 加工技術
About マルチ
About ターニングセンタ