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发明名称
摘要
申请公布号
JP3581967(B2)
申请公布日期
2004.10.27
申请号
JP19900301424
申请日期
1990.11.07
申请人
发明人
分类号
B21C47/02;B21B47/02;B31B19/74;(IPC1-7):B21B47/02
主分类号
B21C47/02
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