[ausudhz]

He forgot many if that matters. There are high speed rails in many countries not only these. just to name a few: Italy, Spain, Korea, Taiwan

https://en.m.wikipedia.org/wiki/List_of_high-speed_railway_l...

[zmix]

Coming from Germany I just could not hold it back... ;-)

Besides that, I doubt, that they all are independent products, but rather one of the named platforms.