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发明名称
摘要
申请公布号
JPS644519(U)
申请公布日期
1989.01.12
申请号
JP19870099961U
申请日期
1987.06.29
申请人
发明人
分类号
B21H5/00;B22F3/24;B22F5/08;B23F19/00;(IPC1-7):B23F19/00
主分类号
B21H5/00
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