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发明名称
摘要
申请公布号
JP2770605(B2)
申请公布日期
1998.07.02
申请号
JP19910174919
申请日期
1991.07.16
申请人
SUMITOMO KINZOKU KOGYO KK
发明人
NAKAMURA YOSHIHISA
分类号
C21B5/00;C21B7/18;C21B7/20;(IPC1-7):C21B7/18
主分类号
C21B5/00
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