C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/13, 53/93
C21C 5/34 (2006.01)
Patent
CA 863854
Ando Ryo
Ishiguro Moriyuki
Kunioka Kazuo
Shimotsuma Teruo
Na
Nippon Kokan Kabushiki Kaisha
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