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发明名称
摘要
申请公布号
JPS57132714(U)
申请公布日期
1982.08.18
申请号
JP19810018491U
申请日期
1981.02.12
申请人
发明人
分类号
B23Q16/06;B21D7/024;(IPC1-7):B21D7/024;B23Q17/02
主分类号
B23Q16/06
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