About SHINOTAKE AKIHIKO
About 新日本製鉄 第3技研
About HAYASHI YOICHI
About 新日本製鉄 第3技研
About TOKUMITSU NAOKI
About 新日本製鉄 第3技研
About HIRATA HIROSHI
About 新日本製鉄 第3技研
About NAKAMURA MASAKAZU
About 新日本製鉄
About smelting reduction process
About Pig iron making
About 鉱石
About 石炭
About 塊
About 溶融還元