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经营范围
发明名称
RAW MATERIAL CHARGING APPARATUS IN A SHAFT FURNACE
摘要
申请公布号
GB1241989(A)
申请公布日期
1971.08.11
申请号
GB19680042190
申请日期
1968.09.05
申请人
NIPPON STEEL CORPORATION;YAWATA IRON & STEEL CO., LTD.
发明人
分类号
C21B7/18
主分类号
C21B7/18
代理机构
代理人
主权项
地址
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