Workers make protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Xu Qin)

A worker makes protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Xu Qin)

Workers make protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Ren Junchuan)

Workers make protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Xu Qin)

A worker makes protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Xu Qin)

Workers make protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Ren Junchuan)

Workers make protective suits at a factory of a medical instrument company in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Feb.14, 2020. The company that can produce about 400 protective suits per day has resumed production since Jan. 24, 2020 to ensure the supply of protective suits during the fight against the novel coronavirus epidemic. (Xinhua/Ren Junchuan)