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发明名称
摘要
申请公布号
JPS6231133(Y2)
申请公布日期
1987.08.10
申请号
JP19840004654U
申请日期
1984.01.19
申请人
发明人
分类号
B02C2/04;B02C23/02;(IPC1-7):B02C2/04
主分类号
B02C2/04
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