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摘要
申请公布号
JPS57194734(U)
申请公布日期
1982.12.10
申请号
JP19810082543U
申请日期
1981.06.04
申请人
发明人
分类号
B21D28/34;B21D5/01;B21D28/10;B21D35/00;B21D37/00;B30B13/00;B30B15/02;(IPC1-7):B21D37/00
主分类号
B21D28/34
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