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发明名称
摘要
申请公布号
FR1587525(A)
申请公布日期
1970.03.20
申请号
FRD1587525
申请日期
1968.10.15
申请人
发明人
分类号
B21D43/05;B21D43/10
主分类号
B21D43/05
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