The guided-missile frigate Liuzhou (Hull 573) steams in formation with the guided-missile frigate Xuchang (Hull 536) during a 5-day maritime training exercise from March 9 to 13, 2020. They are attached to a naval destroyer flotilla under the PLA Southern Theater Command. (eng.chinamil.com.cn/Photo by Chen Yubin)
Source：China Military Online
