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Shigeru TAMAMOTO
Steel Making Department, Wakayama Works, Sumitomo Metals Industries, Ltd.
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Kantaro SASAKI
Central Research Laboratories, Sumitomo Metal Industries, Ltd.
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Hiroshi ICHIKAWA
No. 1 Steel Making Ship, Wakayama Works, Sumitomo Metal Industries, Ltd.
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Masashi TAKANO
Steel Making Technical Section, Wakayama Works, Sumitomo Metal Industries, Ltd.
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Satoru URA
Testing Section, Wakayama Works, Sumitomo Metal Industries, Ltd.