Thank you for info.
I have little knowledge of military equipment. I think that is why I like to post &/or comment from experts discussin the issues.
As I understand the T-90s was the export model, interestingly enough, s models have been seen and destroyed on the battle field showing that the moscovas need to use tanks built for export, not good for export revenue, and as some have suggested they are Indian models sent back for refurbish or upgrade and they had to use them for lack of stock
Don’t worry they are producing all they need /s ( that means sarcasm for those who can’t see it, lol)
The US typically will export only weapons systems with lower block development levels than it currently uses for its own purposes.