Acronym of JR
( Japan Railways ) Jay ar (JR) or the National Railway of Japan. GRE called Group GRE is also known to be and in 1987 from the merger of several different companies is formed. Now a Ar of 6, the company's passenger and a company cargo train and a research institute that is more on computer system works, etc. is formed. In between the passenger GRE two organizations bus GRE and hotels affiliated to Group A AR also.