About HANAMURA TOSHIHIRO
About 金材技研
About HAYASHI TOORU
About 金材技研
About NAKAJIMA HIROSHI
About 金材技研
About TORIZUKA SHIRO
About 金材技研
About NAGAI HISASHI
About 金材技研
About 材料とプロセス
About ferritic steel
About Mechanical properties
About 超微細
About フェライト
About 低炭素鋼
About 棒材
About シャルピー衝撃試験