Glass Wool Felt/Blanket Specification: Thickness: 25-200MM Width: 430MM, 580MM, 1200MM, 1290MM, 1300MM Density: 10-80KG/M3 Length: 5M, 30M Glass wool as sound & heat insulation materials, for an extensively application, like airport, power station, family buildings etc. Heat preservation for steel structure building Heat insulation for wall and roof of house to save energy for indoor partition wall Train compartment for cool-making and high buildings required to be fireproof, heat resistant and sound insulating Roundabout is a manufacturer and distributor of professional thermal insulation-use supplies. Mainly products: glass wool rolls/boards; rock wool rolls/boards. Roundabout is dedicated to providing a high quality, comprehensive product selection to our customers. Our commitment to excellence is achieved through diligent teamwork and continuous improvements in customer satisfaction.