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发明名称
摘要
申请公布号
JPS63127714(U)
申请公布日期
1988.08.22
申请号
JP19870015622U
申请日期
1987.02.06
申请人
发明人
分类号
B21D28/34;B21D5/01;B21D37/08;(IPC1-7):B21D5/01
主分类号
B21D28/34
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