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发明名称
摘要
申请公布号
JPH0777627(B2)
申请公布日期
1995.08.23
申请号
JP19870192971
申请日期
1987.07.30
申请人
发明人
分类号
B02C18/06;B02C18/16;B02C23/00;(IPC1-7):B02C18/06
主分类号
B02C18/06
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