In order to cope with the Coronavirus (COVID-19) epidemic, China`s KN95 and medical mask raw material manufacturers accelerated the production of mask core material meltblown nonwoven fabric, and the output was rapidly increased. With the new production lines of Sinopec, PetroChina and other manufacturers and suppliers put into production,from 1st April, the production capacity of meltblown cloth of Chinese enterprises is expected to increase to more than 1500 tons per day, which can be used to produce 1500 million masks.