![](http://www.ecns.cn/hd/2020/03/19/939a88f075fd4e998e3c0771a39ef119.jpg)
Workers check newly produced masks at a plant in Yanqing district in Beijing, March 18, 2020. (Photo: China News Service/Jiang Qiming)
![](http://www.ecns.cn/hd/2020/03/19/bfab90b18a29451186e324cce06a5aec.jpg)
A worker fixes material into a mask-making machine at a plant in Yanqing district in Beijing, March 18, 2020. (Photo: China News Service/Jiang Qiming)
![](http://www.ecns.cn/hd/2020/03/19/b2c5219a12a8425282651f26ce85a62a.jpg)
Workers check newly produced masks at a plant in Yanqing district in Beijing, March 18, 2020. (Photo: China News Service/Jiang Qiming)
![](http://www.ecns.cn/hd/2020/03/19/a4ea1a9d4dbc4440952eed28a0d2a528.jpg)
Workers pack newly produced masks at a plant in Yanqing district in Beijing, March 18, 2020. With a mask-making machine the factory produces 500 masks per minute. (Photo: China News Service/Jiang Qiming)
![](http://www.ecns.cn/hd/2020/03/19/b8952b0ba8f544bea3f558eb3ce2b6e8.jpg)
Workers check newly produced masks at a plant in Yanqing district in Beijing, March 18, 2020. (Photo: China News Service/Jiang Qiming)
![](http://www.ecns.cn/hd/2020/03/19/3fa92b9fb4a64dda8b94b1bb3e6bc96e.jpg)
A worker checks machine at a facial mask factory in Yanqing district in Beijing, March 18, 2020. (Photo: China News Service/Jiang Qiming)