Visitors learn about a new energy vehicle at the 2024 World Manufacturing Convention in Hefei, east China's Anhui Province, Sept. 21, 2024. The 2024 World Manufacturing Convention opened Friday in Hefei, capital of east China's Anhui Province, highlighting the latest products and innovations in the manufacturing sector. (Photo: Xinhua)

Visitors look at a model of a fully automatic hydrogen-powered train at the 2024 World Manufacturing Convention in Hefei, east China's Anhui Province, Sept. 21, 2024. The 2024 World Manufacturing Convention opened Friday in Hefei, capital of east China's Anhui Province, highlighting the latest products and innovations in the manufacturing sector. (Photo: Xinhua)

Visitors learn about a BYD Yangwang U9 at the 2024 World Manufacturing Convention in Hefei, east China's Anhui Province, Sept. 20, 2024. The 2024 World Manufacturing Convention opened Friday in Hefei, capital of east China's Anhui Province, highlighting the latest products and innovations in the manufacturing sector. (Photo: Xinhua)

Visitors learn about a concept car displayed at the 2024 World Manufacturing Convention in Hefei, east China's Anhui Province, Sept. 21, 2024. The 2024 World Manufacturing Convention opened Friday in Hefei, capital of east China's Anhui Province, highlighting the latest products and innovations in the manufacturing sector. (Photo: Xinhua)

Visitors learn about an electric vertical takeoff and landing aircraft at the 2024 World Manufacturing Convention in Hefei, east China's Anhui Province, Sept. 20, 2024. The 2024 World Manufacturing Convention opened Friday in Hefei, capital of east China's Anhui Province, highlighting the latest products and innovations in the manufacturing sector. (Photo: Xinhua)