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1.MANDREL BAR FOR ROLLING OF HIGH ALLOY, METHOD FOR SURFACE TREATMENT OF THE MANDREL BAR, METHOD FOR MANUFACTURE OF THE MANDREL BAR, AND METHOD FOR OPERATION OF SEAMLESS STEEL PIPE PRODUCTION APPARATUS 有权
标题翻译: DORN ROD用于轧制高合金材料,METHOD FOR DORN ROD,制造方法柱状杆AND METHOD FOR操作该设备用于生产无缝钢管表面处理公开(公告)号:EP2008731A4
公开(公告)日:2012-10-03
申请号:EP07740114
申请日:2007-03-28
申请人: SUMITOMO METAL IND
发明人: IIDA SUMIO , HIDAKA YASUYOSHI , YOSHIZAWA MITSURU , NAKAIKE KOJI
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公开(公告)号:EP1990107A4
公开(公告)日:2012-05-30
申请号:EP07737596
申请日:2007-03-01
申请人: SUMITOMO METAL IND
发明人: OHE TARO , NAKAIKE KOJI
CPC分类号: B21B23/00 , B21B3/02 , B21B19/04 , B21B25/00 , B21B45/004 , C21D8/105 , C21D9/08 , C22C38/002 , C22C38/02 , C22C38/04
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