Given that Russia, Belarus and Ukraine had a joint arms industry until a few months ago, it's not surprising.
Ukraine is a large exporter of tanks, mainly to 3rd world countries - they have tanks built for export that were not available to the army until now. These export vehicles showed up over the last weeks, because the army was clearly running out off their preferred T-64, etc.
Ukraine is a large exporter of tanks, mainly to 3rd world countries - they have tanks built for export that were not available to the army until now. These export vehicles showed up over the last weeks, because the army was clearly running out off their preferred T-64, etc.