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Kaoru SANO
Process Technology Research Laboratory, Technical Development Group, Kobe Steel, Ltd.
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Takashi HARADA
Cutting Tool Division, Akashi Plant, Kobe Steel, Ltd.
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Akihiko MORITA
Kobe Work, Kobe Steel, Ltd.
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Sinzo YOTSUMOTO
Kobe Work, Kobe Steel, Ltd.
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Takayoshi TADA
Kobe Work, Kobe Steel, Ltd.