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发明名称
摘要
申请公布号
JPH089067(B2)
申请公布日期
1996.01.31
申请号
JP19890232091
申请日期
1989.09.07
申请人
发明人
分类号
B21D19/08;B21D39/02;B21D53/86;(IPC1-7):B21D19/08
主分类号
B21D19/08
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