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发明名称
摘要
申请公布号
DD95025(A5)
申请公布日期
1973.01.12
申请号
DD19720161540
申请日期
1972.03.15
申请人
发明人
分类号
C21D1/773;(IPC1-7):C21D1/74;F27B5/12
主分类号
C21D1/773
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代理人
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