About FURUMAI T
About NKK Corp., Hiroshima-ken
About MATSUMURA H
About NKK Corp., Tokyo
About OKAMOTO Y
About NKK Corp., Tokyo
About ARIIZUMI T
About NKK Corp., Hiroshima-ken
About ISHIHARA Y
About NKK Corp., Hiroshima-ken
About ISIJ International (Iron and Steel Institute of Japan)
About projection portion
About リブ
About Rolling techniques
About リブ
About 厚鋼板
About 開発