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发明名称
摘要
申请公布号
JPH0510970(Y2)
申请公布日期
1993.03.17
申请号
JP19870090008U
申请日期
1987.06.11
申请人
发明人
分类号
B21C35/04;B21C35/06;(IPC1-7):B21C35/06
主分类号
B21C35/04
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