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发明名称
DEVICE FOR PREVENTING MIXING OF MOLTEN METAL AND SLAG IN TUNDISH
摘要
申请公布号
KR1019900005192(B1)
申请公布日期
1990.07.21
申请号
KR1019860011571
申请日期
1986.12.30
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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