You have unright informations. It was 4 tank-fabrics in USSR: Omsk, Leningrad, Kharkov and Nizhniy Tagil. Only one was left
And again :azn:, You have unright informations:
1. T-90 continue to armed RA now, but we wait Armata
2. T-80, which are upgraded - it's Leningrag's tanks, not Kharkov
3...