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经营范围
发明名称
OPERATION OF BLAST FURNACE
摘要
申请公布号
JPH11315308(A)
申请公布日期
1999.11.16
申请号
JP19980135950
申请日期
1998.05.01
申请人
NIPPON STEEL CORP
发明人
NAITO MASAAKI
分类号
C21B5/00;(IPC1-7):C21B5/00
主分类号
C21B5/00
代理机构
代理人
主权项
地址
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