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发明名称
摘要
申请公布号
JPH0745060(B2)
申请公布日期
1995.05.17
申请号
JP19870046989
申请日期
1987.03.02
申请人
发明人
分类号
B21C37/00;B21C37/04;B22F9/04;(IPC1-7):B21C37/00
主分类号
B21C37/00
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代理人
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