Yes, those SM4 are based on the WZ551 chassis and 200 copies were exported by Norinco in 2016
Norinco Marketing Photo
DDG 161, the 10th Type052D "Hohhot" commissioned into the 2nd Destroyer Flotilla, Southern Theater Command Navy
LPD 987, the 6th Type071 "Wuzhishan" commissioned into the 6th Landing Ship Flotilla, Southern Theater Command Navy
Zhoushan Naval District is now recommissioned as 14th Frigate Flotilla (第14护卫舰支队), Zhoushan, Zhejiang Province
21st Fast Attack Flotilla is now recommissioned as 15th Frigate Flotilla (第15护卫舰支队), Ningde, Fujian Province
China's fighter jets hold 'perfect combination' training
China's People's Liberation Army Air Force recently conducted combat training involving three types of its most advanced fighter jets, carrying air-to-air missiles, which a Chinese expert called a perfect combination.
China's most advanced stealth fighter jet, J-20, conducted joint training with multi-role strike fighter J-16 and multi-role fighter jet J-10C, engaging in air defense penetration drills, China Central Television (CCTV) reported on Thursday.
The fighter jets used domestically developed mid-range air-to-air missile PL-15 and short-range air-to-air missile PL-10 in the training, Beijing-based news website Sina reported on Saturday.
"The three fighter jets… and the two missiles are perfect combinations," Song Zhongping, a military expert and TV commentator, told the Global Times on Sunday.
The J-20 is capable of destroying a hostile air defense system. The J-10C can then take air supremacy, while the J-16 can strike enemy ground forces, Song said, adding that using the PL-15 and PL-10 together can cover both long-range and short-range aerial combat.
"The combination will serve as an important aerial deterrent against external forces," Song added.