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发明名称
摘要
申请公布号
JPS5711642(U)
申请公布日期
1982.01.21
申请号
JP19800087628U
申请日期
1980.06.24
申请人
发明人
分类号
B21D1/02;B21D1/05;B21D43/09;B30B15/30;(IPC1-7):B21D43/09
主分类号
B21D1/02
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