... output: 200m2/day width:<2.6m polypropylene monofilament series,possess the properties of acid-resistance, alkali-resistance, small ... specific gravity.polypropylene monofilament series,are mainly used in the precision chemical, dye chemical ... products :Thinner filter cloth: 521, 522, 4212, 750AThicker and with higher density : 750 B (series),750 AB,2402,5422 ...