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发明名称
摘要
申请公布号
JPS6340280(Y2)
申请公布日期
1988.10.21
申请号
JP19820034253U
申请日期
1982.03.10
申请人
发明人
分类号
B21D45/00;B30B15/32;(IPC1-7):B21D45/00
主分类号
B21D45/00
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