A staff member works at a factory in Jize County of Handan City, north China's Hebei Province, May 5, 2020. Companies in the county are accelerating production to meet customers' demand. (Xinhua/Wang Xiao)

A staff member works at a factory in Jize County of Handan City, north China's Hebei Province, May 5, 2020. Companies in the county are accelerating production to meet customers' demand. (Xinhua/Wang Xiao)

A staff member works at a factory in Jize County of Handan City, north China's Hebei Province, May 5, 2020. Companies in the county are accelerating production to meet customers' demand. (Xinhua/Wang Xiao)

A staff member works at a factory in Jize County of Handan City, north China's Hebei Province, May 5, 2020. Companies in the county are accelerating production to meet customers' demand. (Xinhua/Wang Xiao)

Staff members work at a factory in Jize County of Handan City, north China's Hebei Province, May 5, 2020. Companies in the county are accelerating production to meet customers' demand. (Xinhua/Wang Xiao)