Filter area, low resistance, high filtration precision, high efficiency filtration. Has good water resistance, dehydration and acid resistance. Self-cleaning ability with long-lasting, they blowback and pulses. With a strong geometry - stability, prevent the formation of high wind filter deformation overlap, reducing the risk of ice blocking. Ensure international quality filter cartridge to achieve world-class level. II: Scope: 1 For high temperature, flammable, explosive filter media. 2 applies to welding fumes, machining, blasting operations. 3 for chemistry, higher cement, steel and temperature applications.