... PET monofilament fabrics.These products prossess the properties of strong acid-resistance,fair Alkli-resistance,and operating ... in pharmaceutical,non-ferry Melting,chemical industrial, for the equipments of frame filter presses, centrifuge filters,Vacuum filters, etc. ... , Pharmacy, chemical industry and foodstuff.polyester staple filter of the third kind:Thickness, abrasion-resistance, Ventilation are ...