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发明名称
摘要
申请公布号
JPS6220703(U)
申请公布日期
1987.02.07
申请号
JP19850112373U
申请日期
1985.07.24
申请人
发明人
分类号
B21C25/00;B21C25/02;B23K1/00;(IPC1-7):B21C25/00;B23K1/12
主分类号
B21C25/00
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