This photo taken on May 15, 2025 shows the opening ceremony of the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Chen Zhenhai)

Visitors view a light sports aircraft during the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province, May 15, 2025. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Xue Yuge)

An exhibitor demonstrates an operating assistance system for cranes during the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province, May 15, 2025. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Xue Yuge)

Visitors watch a humanoid robot demonstration during the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province, May 15, 2025. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Xue Yuge)

Visitors view an electric off-road dump truck for mining purpose during the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province, May 15, 2025. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Xue Yuge)

This photo taken on May 15, 2025 shows a scene during the 4th Changsha International Construction Equipment Exhibition in Changsha, central China's Hunan Province. The event is held here from May 15 to 18, featuring new-generation machinery equipment for construction, emergency service, mining, agriculture and transportation, with an exhibition area of 300,000 square meters. (Xinhua/Xue Yuge)

Source: Xinhua