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摘要
申请公布号
FR2012107(A1)
申请公布日期
1970.03.13
申请号
FR19690022206
申请日期
1969.07.01
申请人
NIPPON KOKAN KK
发明人
分类号
C21C7/00;C22C38/00;(IPC1-7):C21C7/00
主分类号
C21C7/00
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