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发明名称
摘要
申请公布号
JPS5973046(U)
申请公布日期
1984.05.17
申请号
JP19820165710U
申请日期
1982.11.02
申请人
发明人
分类号
B22D31/00;B21D28/00;B21D28/14;B21D45/04;(IPC1-7):B21D45/04
主分类号
B22D31/00
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