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发明名称
摘要
申请公布号
FR2369887(B1)
申请公布日期
1980.06.13
申请号
FR19770032984
申请日期
1977.11.03
申请人
BURBACH EICH DUDELANGE ACIERIES
发明人
分类号
B21F33/00;(IPC1-7):B21C47/24
主分类号
B21F33/00
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