What if the Leichttraktor (https://en.wikipedia.org/wiki/Leichttraktor) is sent to China for testing instead of the USSR as it was in OTL. Would the Chinese be able to copy the design? OTL they tried to build the Sutton Skunk (http://www.tanks-encyclopedia.com/China/Sutton_Skunk.php), however I think that something like the Leichttraktor would have been better at fighting the Japanese.