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发明名称
摘要
申请公布号
JPS622331(Y2)
申请公布日期
1987.01.20
申请号
JP19800127656U
申请日期
1980.09.08
申请人
发明人
分类号
B23K9/20;F16B5/08;F16B33/02;(IPC1-7):F16B33/02
主分类号
B23K9/20
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