This is caused by complicated historical relations. Russian weapons can be found almost everywhere in China's army, including 8/KLOC-0 rifles in the hands of soldiers, as well as new type 99 tanks, nuclear submarines and ballistic missile J-8 aircraft. This is because China and the Soviet Union were allies in 1950s and 1960s, and the foundation of China's defense industry was formed with the help of the Soviet Union, although it also had self-developed equipment. However, it is difficult to get rid of the design style and influence of Russian weapons, such as the chassis of tanks, the structure of nuclear submarines, the shape and fuel of missiles. As for 歼 8, it is an extended modified version of MIG 2 1;
After the disintegration of the Soviet Union, China's huge arms orders fed the major Russian arms companies and kept them going. Although China has cloned its fighter, submarine, chariot and other technologies indefinitely, China has no choice but to export weapons to China at a loss. However, the situation has improved in recent years. Due to the opening of Indian and Southeast Asian markets, China is no longer particularly important.