PTFE nonwoven filter bag Gram weight(g/m2): 508 Thickness( ... 4 Tensile strength(N/5*20cm Detailed Product Description PTFE nonwoven filter bag Gram weight(g/m2): 508 Thickness(mm ... /min: 2.4 Tensile strength(N/5*20cm): PTFE nonwoven filter bagMaterial: PTFE fiberSpecifications: Gram weight (g/m2)508Thickness ... , quakeproof, heat-preservation, sound-insulated, filters, polishing. PTFE nonwoven filter bag