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发明名称
摘要
申请公布号
JPS57123202(U)
申请公布日期
1982.07.31
申请号
JP19810009478U
申请日期
1981.01.26
申请人
发明人
分类号
B27B21/02;B23D51/10;(IPC1-7):B27B21/02
主分类号
B27B21/02
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