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发明名称
摘要
申请公布号
JPS63120719(U)
申请公布日期
1988.08.04
申请号
JP19870011824U
申请日期
1987.01.29
申请人
发明人
分类号
B23D33/00;B21B43/00;B21C51/00;(IPC1-7):B23D33/00
主分类号
B23D33/00
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代理人
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