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发明名称
摘要
申请公布号
JPS6142655(Y2)
申请公布日期
1986.12.03
申请号
JP19810183436U
申请日期
1981.12.08
申请人
发明人
分类号
B21D28/10;B21D28/14;(IPC1-7):B21D28/10
主分类号
B21D28/10
代理机构
代理人
主权项
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