Yan Min restores an ancient weapon in Shijiazhuang, north China's Hebei Province, Sept. 11, 2018. Yan Min, dedicated to ancient weapon restoration for more than 30 years, has hitherto repaired over 500 pieces of ancient weapons with his son Yan Peng. Influenced by his father, Yan Peng quit his job and embarked on restoring ancient weapons in the year of 2015. The sophisticated craftsmanship of ancient weapon restoration embodies working procedures of polishing, burnishing, grinding etc. "Every ancient weapon has a history," said Yan Min. "We will race against time to restore those history-representing ancient weapons." (Xinhua/Chen Qibao)