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经营范围
发明名称
Improvements relating to blast furnaces
摘要
申请公布号
GB1017219(A)
申请公布日期
1966.01.19
申请号
GB19620041318
申请日期
1962.11.01
申请人
NATIONAL STEEL CORPORATION
发明人
分类号
C21B5/00
主分类号
C21B5/00
代理机构
代理人
主权项
地址
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