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发明名称
摘要
申请公布号
JPS58137514(U)
申请公布日期
1983.09.16
申请号
JP19820033914U
申请日期
1982.03.12
申请人
发明人
分类号
B21C51/00;B21D5/02;(IPC1-7):B21D5/02
主分类号
B21C51/00
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代理人
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