Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kokan LtdfiledCriticalNippon Kokan Ltd
Priority to JP18685581ApriorityCriticalpatent/JPS5889971A/ja
Publication of JPS5889971ApublicationCriticalpatent/JPS5889971A/ja
Publication of JPH0211313B2publicationCriticalpatent/JPH0211313B2/ja