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发明名称
Method of producing steel having a low yield ratio
摘要
申请公布号
US4938266(A)
申请公布日期
1990.07.03
申请号
US19880282043
申请日期
1988.12.09
申请人
NIPPON STEEL CORPORATION
发明人
TOMITA, YUKIO;YAMABA, RYOHTA;TSUZUKI, TAKESHI
分类号
C21D1/18;C21D8/02
主分类号
C21D1/18
代理机构
代理人
主权项
地址
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