In May 2020, with the spirit of continuous pioneering and innovation, Lantian Auxiliary Company added the PP1500 production line of melt-blown material, polypropylene melt-blown material is a high-flow PP dedicated to the production of filter layer melt-blown cloth. Meltblown materials are mainly used for the production of masks and protective wear-blown nonwoven fabrics. Adding bricks to prevent and control the epidemic.