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发明名称
摘要
申请公布号
JPH037735(B2)
申请公布日期
1991.02.04
申请号
JP19880303004
申请日期
1988.11.30
申请人
SUMITOMO METAL MINING CO
发明人
KURAMOTO TATSUYA;TASAKA MINORU;TAKEI KAZUHIKO
分类号
C22C21/00;C22C21/10
主分类号
C22C21/00
代理机构
代理人
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