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发明名称
摘要
申请公布号
JPS4721266(Y1)
申请公布日期
1972.07.14
申请号
JP19700018808U
申请日期
1970.02.27
申请人
发明人
分类号
(IPC1-7):B23D55/10;B22D45/00;B27B13/10
主分类号
(IPC1-7):B23D55/10
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