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发明名称
摘要
申请公布号
JPS634234(U)
申请公布日期
1988.01.12
申请号
JP19860090658U
申请日期
1986.06.14
申请人
发明人
分类号
B21D19/08;B21D28/28;B21D41/02;B23P23/04;(IPC1-7):B23P23/04
主分类号
B21D19/08
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