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发明名称
摘要
申请公布号
JPS5250172(Y2)
申请公布日期
1977.11.15
申请号
JP19730014587U
申请日期
1973.02.02
申请人
发明人
分类号
C21C5/40;B08B15/00;B08B15/02;C21C5/38;C21C5/46;F27D17/00;(IPC1-7):C21C5/38
主分类号
C21C5/40
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