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发明名称
摘要
申请公布号
JPS54120511(U)
申请公布日期
1979.08.23
申请号
JP19780016635U
申请日期
1978.02.14
申请人
发明人
分类号
C21B7/22;B08B15/02;(IPC1-7):C21B7/22
主分类号
C21B7/22
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