1,delivery in time. 2,ISO9001:2000,CE,EN779 certification. 3,low resisitance,high capacity. ... hydrocarbon, the products are harmless, smell-less,light and white.2, Even distribution, soft, dense, high strength,low resistanceand high ... .Super Ankelin, Excellent products.Technical data: CategoryRation g/m2EfficiencyResistance/paInternational standard Bag filter20±245-852-5F5 bag filter50 ± 395-99.512 ...