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经营范围
发明名称
REFINING METHOD
摘要
申请公布号
JPS57120629(A)
申请公布日期
1982.07.27
申请号
JP19810007437
申请日期
1981.01.20
申请人
SUMITOMO KINZOKU KOGYO KK
发明人
IKEDA RIYUUKA;ICHIHASHI HIROYUKI;MATSUO TOORU
分类号
C21C7/00;B22D11/04;B22D11/041;C22B9/20
主分类号
C21C7/00
代理机构
代理人
主权项
地址
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