... Disposable surgical mask 1.material:PP nonwoven 2.Size:17.5*9.5cm 3.Color:Blue,white,green 4.Certificate ... :ISO,CE,FDA,GOST PP 2-ply face mask, ... maskSize:17.5*9.5cmMaterial:PP nonwovenWeight:20gsm PP nonwoven+25gsm Filter+20gsm PP nonwovenColor:White,Blue,GreenPacking:50pcs/ ... so on.Material:Face mask is makde of PP nonwoven,Regularly it is 3 ply.The outside ...