A visitor views a 3D display product at the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance. (Photos: People’s Daily Online)

Visitors try smart bicycles at the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Visitors experience a self-driving system from Chang’an Auto at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows the exhibition zone for the industrial Internet, which displays various use scenarios such as a digital factory and a soft production line at the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows the exhibition zone for the industrial Internet, which displays various use scenarios such as a digital factory and a soft production line at the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows a delivery robot presented by JD.com at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows the exhibition zone for the industrial Internet, which displays various use scenarios such as a digital factory and a soft production line at the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows a robotic tea maker presented by Japan's Mitsubishi Electric at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows a smart home presented by Huawei at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.

Photo shows a “5G+ Smart Banks” as presented by the China Construction Bank (CCB) at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021, running from Aug. 23 to 25, saw online and offline participation with more than 600 enterprises in attendance.