Not the faintest idea if any of it is decent. However, China probably uses their own tractors. They have a huge farms also, so maybe these are serviceable...
I drive past a John Deere dealership/showroom, and a New Holland one and wonder who is even buying those in Eastern Europe. Doesn't seem like a good investment.
https://en.wikipedia.org/wiki/Kharkiv_Tractor_Plant
The XTZ 150K: http://xtz.ua/en/kolisni-tractory/xtz-150k-09-172.html