Photo taken on May 11, 2019 shows the opening ceremony of the 14th China (Liuyang) International Fireworks Cultural Festival held in Liuyang City, central China's Hunan Province. Liu Yang is well-known for its fireworks industry. (Photo: China News Service)

Photo taken on May 11, 2019 shows the opening ceremony of the 14th China (Liuyang) International Fireworks Cultural Festival held in Liuyang City, central China's Hunan Province. Liu Yang is well-known for its fireworks industry. (Photo: China News Service)

Photo taken on May 11, 2019 shows the opening ceremony of the 14th China (Liuyang) International Fireworks Cultural Festival held in Liuyang City, central China's Hunan Province. Liu Yang is well-known for its fireworks industry. (Photo: China News Service)

Photo taken on May 11, 2019 shows the opening ceremony of the 14th China (Liuyang) International Fireworks Cultural Festival held in Liuyang City, central China's Hunan Province. Liu Yang is well-known for its fireworks industry. (Photo: China News Service)