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Kango SAKAI
Nihon Parkerizing Co., LTD. Technical DIV.
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Ryouichi YOSHIHARA
Nippon Steel Co., R & D Lab. Hirohata
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Yasuo SHIMOKAWA
Nippon Steel Co., R & D Lab. III
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Nobuo NOMOTO
Nippon Steel Co., Technical DIV.
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Takashi HIRAO
Nippon Steel Co., Technical DIV.
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Yoshio KITAZAWA
Nippon Steel Co., Technical DIV.