With the development of industry, people's living space is affected seriously by the nosie pollution which has become the first pollution in all kinds of pollution.the products we produced can slove the noise problem, they have get through the examination of construction testing centre, the sound insulation effect of single felt is up to 29db, and be unpoisonous so they are the best choice for the modern construction decoration.we can offer best program for different condition., our products also have been ghrough shanghai institute of acoustics tongji university and constructional and scientific research institute.we have good price and good quality, we welcome clients contact with us and have a good communication and cooperation.