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发明名称
摘要
申请公布号
JPH0713854(Y2)
申请公布日期
1995.04.05
申请号
JP19900048195U
申请日期
1990.05.10
申请人
发明人
分类号
B21D37/02;B21D37/00;B21D43/05;B21D43/10;(IPC1-7):B21D37/00
主分类号
B21D37/02
代理机构
代理人
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