In this combo photo, beef processor Ma Xueling (1st L) and her children greet her husband who works outside via a telephone in Xinglong Township of Xiji County in northwest China's Ningxia Hui Autonomous Region in 1996 (L, photo taken by Liu Quanlong), and visitors try smart phones at the first China International Consumer Products Expo in Haikou, capital of south China's Hainan Province, May 8, 2021 (photo taken by Guo Cheng).

In this combo photo, customers ask about a piece of fashion in Fengtai District of Beijing, capital of China, in 1994 (L, photo taken by Tan Jin), and visitors learn about a French fashion piece at the first China International Consumer Products Expo in Haikou, capital of south China's Hainan Province, May 8, 2021 (photo taken by Jin Liwang).

In this combo photo, a cooperative member sews clothes with a sewing machine in Taoan County of northeast China's Jilin Province in 1980 (L, photo taken by Yuan Zhaoyi), and a craftsman makes qipao (cheongsam) at the first China International Consumer Products Expo in Haikou, capital of south China's Hainan Province, May 8, 2021 (photo taken by Jin Liwang).

In this combo photo, customers ask about fridges imported from Japan at a shopping mall of Beijing, capital of China in 1980 (L, photo taken by Lu Yanyuan), and visitors learn about fridges at the first China International Consumer Products Expo in Haikou, capital of south China's Hainan Province, May 7, 2021 (photo taken by Guo Cheng).

In this combo photo, people buy Chinese baijiu in Zigui County of central China's Hubei Province in 1998 (L, photo taken by Liu Jiwu), and a visitor tastes imported wine at the first China International Consumer Products Expo in Haikou, capital of south China's Hainan Province, May 8, 2021 (photo taken by Guo Cheng).