A box of Nanjing Mengdu 20 is real or fake

Really. According to the information on the official website of China Tobacco Company, Mengdu can check the authenticity of the cigarettes by checking the steel seals on the cigarettes. The steel seals on real cigarettes are of different depths and intervals, while the steel seals on fake cigarettes are of the same depth. China National Tobacco Corporation was established in January 1982. Its main responsibilities are to manage the production, supply, sales, import and export business and foreign economic and technological affairs of its affiliated enterprises in accordance with national laws and relevant regulations, decrees, guidelines and policies of the State Council, and in accordance with national plans. Cooperate to implement centralized and unified management.