The guided-missile frigate Qujing (Hull 508) attached to a frigate flotilla with the navy under the PLA Southern Theater Command fires its close-in weapons system during a four-day maritime fully exercising qualification test in waters of the South China Sea from May 30 to June 2, 2019. (eng.chinamil.com.cn/Photo by Cai Shengqiu)
Source：China Military Online
