polyester needle felt 1.material is PE,PP,PPS 2.acid and alkali resistance 3.used in pharmaceuticals,smelting We selects 1.2D,2D and 2.5D polyester fiber, and they will produced with advanced equipment which can uniformly blend over five kinds of fibers that are different materials and specifications, and through a series of blending cotton machines and carding looms that are good to produce ...