Glass cotton is the world's most widely used insulation material, because of its technology and energy efficiency in the following multi-features: * Has a good insulation, heat insulation, sound absorption · No burning, low thermal conductivity, light-weight (ease of construction time handling, processing, installation) * good physical and chemical properties: does not produce harmful gases do not rot, insects and animals from grazing troubled non-hygroscopic, aging can coexist with most chemicals on the general metal, such as: iron, steel, copper, zinc and aluminum and other non-corrosive · processed by a variety of natural materials made with recoverability Intentional environment:! help reduce air pollution. Simian glass production line put into operation since 1988, the product has been widely used in China's industrial equipment and civil aspects. · Insulation areas: steel Insulation - building insulation · sound absorption areas: - residential wall insulation - office renovation and acoustic ceiling - heating pipes, air conditioning ducts - theaters, classrooms and other acoustic treatment - Transportation Equipment : train cars, trucks, etc. - industrial facilities, thermal power plants and other noise control - petrochemical industry, power plants, etc. - ventilation ducts and electrical appliances, such as noise reduction processing. Centrifugal glass wool physical performance indicators: Item Unit Standard Density kg / m3 10-100 GB / T 5480.3-1985 average fiber diameter μm 5.5 GB / T 5480.4-1985 hydrophobic rate% ≥98.2 GB / T 10299-1988 thermal conductivity w / mk 0.038-0.06 GB / T 10294-1988 incombustible incombustible 0 (A grade) GB8624-1997 absorption coefficient of 1.03 products reverberation titration 24kg / m32000HZ GBJ47-83 heat load shrinkage temperature ℃ ≥250 GB / T 11835-1998 moisture sex% ≤5 GB / T 16401-1986 moisture% ≤1 GB / T 3007-1982 shot content% ≤0.3