Staff members work on the face mask production line at the workshop of GAC Component Co., Ltd. in south China's Guangdong Province, Feb. 20, 2020. (Xinhua/Deng Hua)

 

A staff member works at the Guangzhou Weini Technology Development Co., Ltd. in Guangzhou, south China's Guangdong Province, April 22, 2020. (Xinhua/Ma Xiaocheng)

 

A staff member works on the face mask production line at the workshop of GAC Component Co., Ltd. in south China's Guangdong Province, Feb. 20, 2020. (Xinhua/Deng Hua)