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发明名称
摘要
申请公布号
JP3327849(B2)
申请公布日期
2002.09.24
申请号
JP19980284794
申请日期
1998.09.21
申请人
发明人
分类号
B21C3/02;B22F1/00;B22F3/24;B22F5/00;(IPC1-7):B21C3/02
主分类号
B21C3/02
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