It would be interesting to know how China kept their virus figures very low and they are now through it .

A combination of slightly optimistic massaging of the figures, possibly? But the main thing is that they had a very rigorous control-based approach. Everyone was literally confined to their homes, there was very comprehensive testing, and anyone with even slight symptoms was removed from their family and taken to a separate quarantine facility for treatment.
Same with South Korea, they got on top of it very quickly.