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发明名称
摘要
申请公布号
JPS63145512(U)
申请公布日期
1988.09.26
申请号
JP19870034163U
申请日期
1987.03.09
申请人
发明人
分类号
B21C37/08;B21D5/12;B23K11/36;(IPC1-7):B21C37/08
主分类号
B21C37/08
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代理人
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