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发明名称
摘要
申请公布号
JPS5537870(U)
申请公布日期
1980.03.11
申请号
JP19780121139U
申请日期
1978.09.05
申请人
发明人
分类号
C21B7/12;(IPC1-7):C21B7/12
主分类号
C21B7/12
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代理人
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