An employee of a petrochemical company in Jiangdu district, Yangzhou, east China’s Jiangsu province manufactures medical-use staple fiber, March 6. By Yu Xing, People’s Daily Online

Employees work at a mask machine workshop in Hai’an, east China’s Jiangsu province, April 24. By Jiang Ming, People’s Daily Online

Employees of Sinopec Yanshan Petrochemical Company test meltblown non-woven fabrics, March 7. By Hu Qingming, People’s Daily Online

Employees work on a newly-built production line of non-woven fabrics of Sinopec Yanshan Petrochemical Company, March 2. By Hu Qingming, People’s Daily Online