... 3.moistureproof 4.best price 5.good anti-oxidability Nonwoven fabric filter clothpp nonwoven fabric, industry clothMaterial:polyester,polypropyleneFeatures: non-toxic without excitant, moistureproof ... treatment: singing, calendaring, heat setting, filming PTFE, dipping treatment of water or oil.Nonwoven fabric filter cloth are suitable for agricultural, shoes, leather ...