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发明名称
摘要
申请公布号
JPH0586287(B2)
申请公布日期
1993.12.10
申请号
JP19870256044
申请日期
1987.10.09
申请人
SUMITOMO METAL IND
发明人
NAGASE YUTAKA
分类号
B21B27/02;B21B19/06;(IPC1-7):B21B19/06
主分类号
B21B27/02
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