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发明名称
INTERNALLY COOLED TUBE-ROLLING MANDREL
摘要
申请公布号
GB1592754(A)
申请公布日期
1981.07.08
申请号
GB19780012274
申请日期
1978.03.29
申请人
MANNESMANN AG
发明人
分类号
B21B21/00;B21B25/04;(IPC1-7):B21B25/00
主分类号
B21B21/00
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代理人
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