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发明名称
摘要
申请公布号
JPS605953(Y2)
申请公布日期
1985.02.25
申请号
JP19790078246U
申请日期
1979.06.11
申请人
发明人
分类号
B21D45/04;B21J13/02;B21J13/14;B21K27/00;(IPC1-7):B21J13/14
主分类号
B21D45/04
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