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发明名称
摘要
申请公布号
JPS5610964(B2)
申请公布日期
1981.03.11
申请号
JP19750053053
申请日期
1975.05.01
申请人
发明人
分类号
C21D1/00;B21B1/00;C21D9/00;C21D9/70
主分类号
C21D1/00
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代理人
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