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发明名称
SULPHUR AND SILICON CONTROL IN FERROCHROMIUM PRODUCTION
摘要
申请公布号
ZA8809510(B)
申请公布日期
1989.09.27
申请号
ZA19880009510
申请日期
1988.12.21
申请人
MIDDELBURG STEEL & ALLOYS (PROPRIETARY) LIMITED
发明人
DONOVAN DE LACY SLATTER
分类号
C21C;C22B
主分类号
C21C
代理机构
代理人
主权项
地址
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