An aerial drone photo taken on July 16, 2024 shows the glasses industrial park of Danyang City, east China's Jiangsu Province. Dubbed as China's "spectacles city," Danyang has more than 1,600 companies engaged in the eyewear industry. To maintain its market share and keep up with the new market demand, eyewear companies in Danyang have attached more importance to innovation and branding in recent years and a whole industrial chain has taken shape. (Xinhua/Li Bo)