Keikyu has displayed the abbreviation for a long time as KHK. Though still a lot of KHK remained on the body side When you made type 800 three reams six reams It came to be displayed as KEIKYU. This has been succeeded also by as many as type 600.
"Keikyu" is "Keihin kyuko railway" in Tokyo metropolitan area. It is HOT and COOL railway in Japan.
Keikyu has displayed the abbreviation for a long time as KHK. Though still a lot of KHK remained on the body side When you made type 800 three reams six reams It came to be displayed as KEIKYU. This has been succeeded also by as many as type 600.