... wool felt (roll&blanket) 1)heat insulation,sound absorption 2)anticorrosion,durable and elastic 3)various ... specification Glass wool felt (roll&blanket)1)heat insulation,sound absorption2)anticorrosion,durable and elastic3)various specificationthickness: according to ... molding,low thermal conductivity,heat insulation,well sound absorption ,corrosion resistance and steady chemical property.