2015Aug.18~20 Summer Seminar Camp (@Nikko / Kinugawa)ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤAug. 17 Lecture by Mr. InagakiSep. 9-11 Abrasive Technology Conference (ABTEC2015)