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发明名称
摘要
申请公布号
JPH0133280(Y2)
申请公布日期
1989.10.09
申请号
JP19830132290U
申请日期
1983.08.29
申请人
发明人
分类号
B21D45/04;B21D55/00;B30B15/28;B30B15/32;(IPC1-7):B30B15/28
主分类号
B21D45/04
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