... with tie,Nonwoven both in-out side,a superfine PPMB filter paper between middles. Sanitary nonwoven mask3ply & 2ply face mask with ... ,Nonwoven both in-out side,a superfine PPMB filter paper between middles.Our PP composite nonwoven fabric is for mask,surgical gown ... )5.Gram:18+20+25gsm or 20+20+25gsm6.Technique:Melt-blown7.Usage: Mainly used in hospital,medical sanitation,laboratory,ele8 ...