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发明名称
摘要
申请公布号
JPS63196308(U)
申请公布日期
1988.12.16
申请号
JP19870085632U
申请日期
1987.06.01
申请人
发明人
分类号
B21C25/02;B21C35/04;(IPC1-7):B21C25/02
主分类号
B21C25/02
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