Visitors select products during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Lu Boan)

Visitors select products during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Lu Boan)

People visit the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Cao Yiming)

Visitors select products during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Cao Yiming)

People experience Thailand massage during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Lu Boan)

Visitors select products during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 30, 2020. The public open day of the expo kicked off on Monday. (Xinhua/Lu Boan)