A guest experiences a VR device at Tianjin Light Industry Vocational Technical College in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

A guest visits the Luban Workshop Construction and Experience Museum in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

Guests visit Tianjin Light Industry Vocational Technical College in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

Guests listen to a briefing at the smart zero-carbon terminal of Tianjin Port in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

Guests visit the Luban Workshop Construction and Experience Museum in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

Guests communicate at Tianjin Light Industry Vocational Technical College in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)

Guests visit Tianjin Light Industry Vocational Technical College in north China's Tianjin, July 7, 2025. Guests gathered in Tianjin for the Global Mayors Dialogue -- SCO Summit Cities and visited the smart zero-carbon terminal of Tianjin Port, Luban Workshop Construction and Experience Museum and other places to learn about China's economic and social development. (Xinhua/Li Ran)