... particles will be absorbed on the folded area till it is saturated. ·Folded paperboard will increase with a rise ... the distribution of the speed. ·Long-span than other paper filter,up to six times ·Particulars holding capacity:18Kg ... surfacer, 2 component lacquer, polyester, wax, tar, glue, adhesive, Teflon, polyurethane, silicone, chocolateMaterial characteristicsSelf-rigid due to special pleating ...