"Russia’s first delivery to China of the state-of-the-art S-400 air defense system will be made in the near future, said Sergey Chemezov, CEO of Rostec Corporation". Source: Flying Dutchman (s 400 photo from DefenceTalk ) The S-400 Triumf (Russian: C-400 Триумф, Triumph; NATO reporting name: SA-21 Growler), previously known as the S-300PMU-3,is an anti-aircraft weapon system developed in the 1990s by Russia's Almaz Central Design Bureau as an upgrade of the S-300 family. It has been in service with the Russian Armed Forces since 2007. The S-400 uses four missiles to fill its performance envelope: the very-long-range 40N6 (400 km), the long-range 48N6 (250 km), the medium-range 9M96E2 (120 km) and the short-range 9M96E (40 km). The S-400 has been described, as of 2017, as "one of the best air-defence systems currently made." ..... Wikipedia Air Defense Diagram ( Army Recognition ) Stups, Parts and Diameters