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发明名称
摘要
申请公布号
JPS5433221(B2)
申请公布日期
1979.10.19
申请号
JP19740071428
申请日期
1974.06.24
申请人
发明人
分类号
C21C7/00;B22D7/00;B22D7/10;B22D27/06
主分类号
C21C7/00
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代理人
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