... PPS 2.over 25 years' experience 3.ISO9001:2008 Needle punched nonwoven PPS filter felt1.material:100% PPS 2.over 25 years ... plain,twill,satin construction,any dimension is available. 2.needle felt sieriesMade of polyester,polypropylene,acrilic,PPS,fiberglass,PTFE,P84 ... liquid filter bag sieriesMonofilament filter bag, multifilament filter bag,needle punched filter bag,made of pp,pe,pa(nylon),the ...