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发明名称
摘要
申请公布号
JPS6217148(Y2)
申请公布日期
1987.04.30
申请号
JP19820165028U
申请日期
1982.10.30
申请人
发明人
分类号
B22C5/16;B01D21/24;(IPC1-7):B22C5/16
主分类号
B22C5/16
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