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发明名称
摘要
申请公布号
JPS6015421(U)
申请公布日期
1985.02.01
申请号
JP19830107388U
申请日期
1983.07.11
申请人
发明人
分类号
B21D7/06;B21D7/00;(IPC1-7):B21D7/00
主分类号
B21D7/06
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