Method and apparatus for producing hollow metal ingots

Assignee

• Kawasaki Steel

Inventors

• Kenji Saito (241 patents)
• Yukio Oguchi (11 patents)
• Toshio Kato (40 patents)
• Hideshi Ohzu (3 patents)
• Kanji Aizawa (2 patents)
• Minoru Yao (2 patents)

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