Wei Guowei is a maintenance worker in the makeshift hospital of the Shanghai National Convention and Exhibition Center of the China Construction Eighth Bureau. He needs to be on call 24 hours a day to maintain the normal operation of the makeshift hospital. "This is the sixth instruction we received today, to install New water heaters, increased from 6 to 12".

(Li Qiuying produced Liu Yinghan's video source China Construction Eighth Bureau Development and Construction Company)

Responsible editor: [Luo Pan]