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申请公布号
JPS56142813(U)
申请公布日期
1981.10.28
申请号
JP19800042307U
申请日期
1980.03.28
申请人
发明人
分类号
B21D3/10;B21D3/16;(IPC1-7):B21D3/10
主分类号
B21D3/10
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