Glass fiber insulation mat(needle-punched felt) is a non-woven fabric product made from glass fiber. The fiber is cut into short lengths of two to three inches per strand, and the combed glass fiber is needle-punched, causing the fibers to intertwine with each other. Glass fiber needle-punched mat has the characteristics of low thermal conductivity, good sound absorption, long fibers, high tensile strength, non-toxicity, and odorlessness. Saolong's glass fiber needle-punched mat is developed and produced as a dedicated substrate for aerogel mat.