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摘要
申请公布号
JP2547626(Y2)
申请公布日期
1997.09.10
申请号
JP19920065692U
申请日期
1992.08.07
申请人
发明人
分类号
B21C23/21;B21C25/02;(IPC1-7):B21C25/02
主分类号
B21C23/21
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