The main characteristics of felt are as follows: elastic, it can be used as shock proof, sealing, pad and elastic wire needle cloth bottom felt. It has good adhesion performance and is not easy to loose. It can be cut into various shape parts and has good insulation performance. It can be used as heat insulation and insulation material, compact structure and small pore, which can be used as a good filter material and wear resistance, and can be used as polishing material.