Needle punched felt is composed product of woven fabric and the non- woven of needle punched fabric. Inside the felt, there is a basic scrim to reinforcing the tensility. The tensility and elongation of the felt basically depends on the scrim. In recent years, some domestic chemical fiber enterprises have developed and produced the industrial high tenacity polyester yarn. types: Polyester Anti-static Filter Felt, Water and Oil Repellent Felt, Polyester Filter Felt for Normal Working Temperature, Polypropylene Filter Felt for Normal Working Temperature, Membrane Needle Punched Felt (PTFE Coated Felt) ,Aramid Needle Punched Filter Felt ,PPS Needle Punched Filter Felt.