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发明名称
摘要
申请公布号
BE692561(A)
申请公布日期
1967.06.16
申请号
BE19670692561
申请日期
1967.01.13
申请人
发明人
分类号
C21D8/00;C22C38/44;C22C38/58
主分类号
C21D8/00
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代理人
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