Dacheng Xinhua Sealing and Packing Factory is the professional factory which engaged in manufacturing sealing materials.We developed various sealing products of high and low temperature resistance, high pressure resistance and acid and alkali corrosion resistance in the past 20 years. Our products are widely used in pipes,valves,flanges,heat changer,pipes of petroleum, chemical industry, paper making, shipping, electric power station, metallurgy, etc.