The very activity drew attention in China itself, where local spotters posted a video of the russian company's An-124 Ruslan landing at Zhengzhou airport.Read more: Russians Build Wagner Line In Luhansk Oblast, Which May Slow Ukraine’s Tanks DownAlso, flight tracking services, in particular Radarbox, show nine An-124 flights to China and only three in the return direction over the past seven days, which directly indicates that the transponder was turned off during some of the flights.The standard flight runs along the route Moscow-Novosibirsk-Zhengzhou-Novosibirsk-Moscow.Overall, Zhengzhou is a powerful logistics and industrial hub and a powerful industrial high-tech zone, including units of Chinese defense giant Norinco.We can only guess about the possible activity of the military transport aviation of the russian federation on similar routes."