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摘要
申请公布号
JPS59120014(U)
申请公布日期
1984.08.13
申请号
JP19830014710U
申请日期
1983.02.03
申请人
发明人
分类号
B22D31/00;B21D3/10;B21D24/16;B21D28/00;B22D29/00;(IPC1-7):B21D3/10
主分类号
B22D31/00
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代理人
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