polyester needle felt 1.material is PE,PP,PPS ... pharmaceuticals,smelting We selects 1.2D,2D and 2.5D polyester fiber, and they will produced with advanced equipment which can ... acid and anti-alkali, especially its excellent anti-abrasion, polyester needle punched filter felt have the largest quantity of turnouts ... .6150~170500/600110/1004~12<130, Max.150 polyester micron felt for liquid filtration