Polyester Filter Bag 1. Ideal medium for liquid filtration 2. Ideal material gas filtration 3. Long service life The welded ... , 10, 25, 50, 75, 100, 150, 200 2. International standard filter bag: ES-1, ES-2, ES-3, ES-4 Liquid filter bag Filter bag filter ... , 50, 75, 100, 150, 200 International standard filter bag parameter: ES-1, ES-2, ES-3, ES-4 PPS thermally welded pocket filter bags