Visitors take photos at the booth of Iran at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Zhou Hua)

A visitor views costumes from Myanmar at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Liu Lingyi)

Visitors view an automatic rubber tapping machine at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Zhou Hua)

A visitor experiences a simulated cab system at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Zhou Hua)

Photo taken on Sept. 11, 2021 shows an mechanical arm at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Liu Lingyi)

A visitor takes photos of an unmanned car at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Lu Boan)

An artist performs with traditional musical instruments at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Lu Boan)

Artists perform at the pavilion of Indonesia at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Lu Boan)

A visitor (L) learns about the performance of a robot at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Lu Boan)

An exhibitor shows a VR device at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 11, 2021. The 18th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off Friday in Nanning, highlighting the building of a closer China-ASEAN community with a shared future. (Xinhua/Liu Lingyi)