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发明名称
LOW-ALLOY STEEL, SEAMLESS STEEL PIPE FOR OIL WELL, AND PROCESS FOR PRODUCING SEAMLESS STEEL PIPE
摘要
申请公布号
EP2133442(B1)
申请公布日期
2012.02.01
申请号
EP20080739231
申请日期
2008.03.28
申请人
SUMITOMO METAL INDUSTRIES, LTD.
发明人
TOMOMATSU, KUNIAKI;OMURA, TOMOHIKO;ARAI, YUJI;ABE, TOSHIHARU
分类号
C22C38/00;C21D8/10;C21D9/08;C22C38/24;C22C38/28
主分类号
C22C38/00
代理机构
代理人
主权项
地址
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