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发明名称
摘要
申请公布号
JPS5861331(U)
申请公布日期
1983.04.25
申请号
JP19810157311U
申请日期
1981.10.22
申请人
发明人
分类号
B21D43/04;B21D43/26;B21D45/04;B30B15/30;B30B15/32;(IPC1-7):B21D43/04
主分类号
B21D43/04
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代理人
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