Needle punched nonwovens usually include thick nonwovens made of polyester fibers and thin nonwovens made of polypropylene fibers. The needle-punched nonwovens commonly used in Zhicheng fiber are polyester fibers, which can produce PET nonwovens, and polypropylene fibers (polypropylene, pp, polypropylene fibers) can produce PP nonwovens. If polyester fibers and polypropylene fibers are compounded, composite nonwovens can be produced. In addition, there are nylon (PA), viscose fiber, acrylic fiber, ethylene fiber (HDPE), chlorine fiber (PVC) and so on.