Russia is selling China 60 SU-30 MKK warplanes for over a billion dollars. This aircraft is is a twin-seat, multi-purpose warplane roughly comperable to the US F-15. The Su-30 can be refueled in the air and has ground attack capabilities. Apparently he Russians are selling the Chinese the best electronics available for the Su-30. In the past, the Russians had only exported less capable versions of their top line military equipment.