HOME > Published patent applications > Detail[Published patent application] 窒化層を有する超微細粒鋼2004-05-13. 2004137561 (Google Patents) , 3931230NIMS author(s)HIRUKAWA, HisashiFURUYA, YoshiyukiCreated at :2023-07-22 21:44:48 +0900 Updated at :2023-07-22 21:44:48 +0900