(Morning News) China has been the main buyer of Russian weapons and equipment for many years, but the military technology of Chinese imitation latter is the main problem facing cooperation.Russian media reports that Russia is concerned about China's imitation of its weapons, but it is helpless because they have not applied for and registering international patents.

Some experts have pointed out that China is imitating from aviation engines to fighter aircraft, and even air defense missiles; the number of Chinese procurement of Soviet 35 fighters is not large, which just reflects its development purpose with imitation.

Livadne, the head of the Russian Technology Group, said that China's large -scale imitation of Russian military military, including the famous armor S1 air defense missiles, who has repeatedly shot down the Russian -Russian base and has repeatedly shot down the drone and other aircraft.He believes that the situation of foreign imitation Russian weapons is complicated. In the past 17 years, there are more than 500 related behaviors. Although Russia dispatched an expert group in a foreign country to track imitation, it was unable to report because it did not apply for a patent.