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发明名称
摘要
申请公布号
JPH0417382(U)
申请公布日期
1992.02.13
申请号
JP19900054071U
申请日期
1990.05.25
申请人
发明人
分类号
B21D28/36;B23K26/00;B23K26/06;B23K26/14;(IPC1-7):B23K26/14
主分类号
B21D28/36
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代理人
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