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发明名称
摘要
申请公布号
JP2690580(B2)
申请公布日期
1997.12.10
申请号
JP19890342270
申请日期
1989.12.29
申请人
发明人
分类号
B22D29/00;B22D17/22;B22D33/04;(IPC1-7):B22D33/04
主分类号
B22D29/00
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代理人
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