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经营范围
发明名称
SHAFT FURNACES
摘要
申请公布号
GB1574451(A)
申请公布日期
1980.09.10
申请号
GB19770012760
申请日期
1977.03.25
申请人
NIPPON STEEL CORP
发明人
分类号
C21B13/02;F27B1/20;F27B1/21;(IPC1-7):F27B1/20
主分类号
C21B13/02
代理机构
代理人
主权项
地址
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