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发明名称
摘要
申请公布号
JPS6211133(B2)
申请公布日期
1987.03.11
申请号
JP19790067443
申请日期
1979.06.01
申请人
NIPPON STEEL CORP
发明人
OOTA HIDEMI
分类号
E02D5/04;C23F15/00;E02D31/06
主分类号
E02D5/04
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