(210108) -- DAQING, Jan. 8, 2021 (Xinhua) -- Jia Hualong, deputy leader of the No. 1205 drilling team works at the oil platform in Daqing Oilfield in Daqing, northeast China's Heilongjiang Province, Dec. 28, 2020. Jia Hualong, born in 1989, is the deputy leader of the No. 1205 drilling team in Daqing Oilfield. Jia assists other workers with drilling even though the temperature drops to minus 30 degrees Celsius during winter around here. The spirit of "iron man" was born from Wang Jinxi, a model worker of the oilfield who devoted his life to the development of the petroleum industry. Nowadays, faced with COVID-19 pandemic and severe cold, Jia has carried on the spirit to dedicate himself to his motherland. (Xinhua/Wang Song)