... or metal frame, fiber material, net outside, v-type boxFiltration Grade:Hepa FilterMedium Material:fiber class and chemical fiber or corrugated ... resistance, or card paper, galvanized steel, medium densirt fiberboard,2, Grade: F6-H14. EU6-EU10, with separator or not, commonly used ... H1415.550/2000,85/3000,145/4000There are so many filter size and technical data, we could manufacture filters accoeding to ...