lmika001の公開自分史 http://pastport.jp/user/lmika001 ja-JP 25CrMo4 Gear Steel Bar and Tube Technical Data Sheet Introduce 25CrMo4 Gear Steel Bar and Tube Technical Data Sheet Introduce 25CrMo4 is a heat-resistant steel with good and stable mechanical properties at high temperatures after heat treatment. It has high hardenability, no temper brittleness, good weldability, low 2022-09-08T18:09:56+0900 http://pastport.jp/user/lmika001/timeline/25CrMo4%20Gear%20Steel%20Bar%20and%20Tube%20Technical%20Data%20Sheet%20Introduce lmika001 http://pastport.jp/user/lmika001/timeline/25CrMo4%20Gear%20Steel%20Bar%20and%20Tube%20Technical%20Data%20Sheet%20Introduce