Visitors are seen at an agricultural products promotion event during the "Liaoning Day" theme event held as part of the Beijing International Horticultural Exhibition in Yanqing District, Beijing, capital of China, May 19, 2019. (Xinhua/Zhang Chenlin)

Exhibitors introduce local agricultural products to visitors during the "Liaoning Day" theme event held as part of the Beijing International Horticultural Exhibition in Yanqing District, Beijing, capital of China, May 19, 2019. (Xinhua/Zhang Chenlin)

Visitors are seen at an agricultural products promotion event during the "Liaoning Day" theme event held as part of the Beijing International Horticultural Exhibition in Yanqing District, Beijing, capital of China, May 19, 2019. (Xinhua/Zhang Chenlin)

Visitors tour the Liaoning Garden during the "Liaoning Day" theme event held as part of the Beijing International Horticultural Exhibition in Yanqing District, Beijing, capital of China, May 19, 2019. (Xinhua/Zhang Chenlin)