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摘要
申请公布号
JP2993748(B2)
申请公布日期
1999.12.27
申请号
JP19910044658
申请日期
1991.03.11
申请人
发明人
分类号
B21C1/00;C21D8/06;C22C38/00;C22C38/20;(IPC1-7):C21D8/06
主分类号
B21C1/00
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