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发明名称
IMPROVED BLAST FURNACE TUYERE FOR EXTENDED LIFE
摘要
申请公布号
GB8921050(D0)
申请公布日期
1989.11.01
申请号
GB19890021050
申请日期
1989.09.16
申请人
PEEL, ERIC
发明人
分类号
C21B7/16
主分类号
C21B7/16
代理机构
代理人
主权项
地址
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