... PVDF,PP,PES,PS,PAN & PVC Ultrafiltration (UF) Membrane Filters are an asymmetric semi-permeable membrane made of high molecular ... ) Membrane FiltersItem: UFM90, UFM160, UFM200, UFM4040, UFM8040, UFM4021 Protective shell material: UPVC, ABS,STAINLESS STEEL Hollow fiber material: PP,PS ... : 80-90% Ultrafiltration (UF) Membrane FiltersUltrafiltration (UF) Membrane Filters PVDF Ultrafiltration (UF) Membrane ...