The guided-missile destroyer Chengdu (Hull 120) and the guided-missile frigate Datong (Hull 580) attached to a naval vessel training center under the PLA Northern Theater Command steam in formation to occupy attack positions during a 3-day maritime training exercise from November 4 to 6, 2020. (eng.chinamil.com.cn/Photo by Zou Xiangmin)
Source：China Military Online
