【材料】日本製鉄の「無方向性電磁鋼板」は何がすごいのか [すらいむ★]

【材料】日本製鉄の「無方向性電磁鋼板」は何がすごいのか [すらいむ★]
https://anago.2ch.sc/test/read.cgi/scienceplus/1634696367/

last-modified: 2021-11-10 00:54:02