Sunholly Milled Para-Aramid Fiber has high strength, good dimensional stability, no brittleness, high temperature resistant, corrosion resistant, good toughness, small shrinkage rate, good wear resistance, large surface area, it can be a very good combination with other substances. It can be used as the sealing material of water, oil, hydrocarbon and medium strength acid and alkali, etc. Sealing material has excellent performance and anti-creep relaxation performance. Usually only less than 10% pulp is added to produce a product with a strength equivalent to 50-60% asbestos fibre reinforcement. Used as a substitute for asbestos in friction sealing materials, high performance heat-resistant insulating paper and reinforced composite materials.