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经营范围
发明名称
Improvements in or relating to the desulphurisation of steel
摘要
申请公布号
GB728447(A)
申请公布日期
1955.04.20
申请号
GB19520000735
申请日期
1952.01.09
申请人
SOCIETE D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE
发明人
分类号
C21C7/064
主分类号
C21C7/064
代理机构
代理人
主权项
地址
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