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发明名称
摘要
申请公布号
JPS6239190(B2)
申请公布日期
1987.08.21
申请号
JP19780041735
申请日期
1978.04.11
申请人
NIPPON STEEL CORP
发明人
IEKO KAZUHIRO;UENO SHOSUKE;SHIGEUCHI OSAMU;KATO HIDEO
分类号
C10B23/00;C10B57/00
主分类号
C10B23/00
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