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发明名称
摘要
申请公布号
JP2701957(B2)
申请公布日期
1998.01.21
申请号
JP19900031763
申请日期
1990.02.13
申请人
发明人
分类号
F28F1/10;B21B1/22;B21C37/15;B21D5/12;B21H7/00;(IPC1-7):B21C37/15
主分类号
F28F1/10
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