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Koe NAKAJIMA
Technical Research Institute, Yawata Works, Nippon Steel Corp.
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Wataru MIZUTANI
Technical Research Institute, Yawata Works, Nippon Steel Corp.
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Toshio KIKUMA
Technical Research Institute, Yawata Works, Nippon Steel Corp.
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Hiromi MATUMOTO
Technical Research Institute, Yawata Works, Nippon Steel Corp.