Introduction to great contributions and excellent brands: In the "Great Contributions, Excellent Brands" exhibition hall, it mainly displays the great contributions and valuable experience created by Daqing Oilfield in the past 47 years, as well as the excellent brands that are renowned around the world. At the same time, it displays the relevant contents of Daqing Oilfield's development of domestic and overseas markets, which fully proves the strength of Daqing Oilfield and its position in the international petroleum industry.