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发明名称
摘要
申请公布号
JPS6390532(U)
申请公布日期
1988.06.11
申请号
JP19860185234U
申请日期
1986.12.01
申请人
发明人
分类号
B21D43/02;(IPC1-7):B21D43/02
主分类号
B21D43/02
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