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.)
SHIBATA KENKI KENKIYUUSHIYO KK
SHIBATA KENKI KENKYUSHO KK
Nippon Steel Corp
Original Assignee
SHIBATA KENKI KENKIYUUSHIYO KK
SHIBATA KENKI KENKYUSHO KK
Nippon Steel Corp
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 SHIBATA KENKI KENKIYUUSHIYO KK, SHIBATA KENKI KENKYUSHO KK, Nippon Steel CorpfiledCriticalSHIBATA KENKI KENKIYUUSHIYO KK
Priority to JP15054475ApriorityCriticalpatent/JPS5274987A/en
Publication of JPS5274987ApublicationCriticalpatent/JPS5274987A/en
PURPOSE: To provide a concrete coating tube grinding machine which can advantageously solve problems of unavoidable thickness variation of concrete coating on a steel pipe and of occurrence of ruggedness on the surface of the coating.