This product in made from the high strength glass fiber , it is a kind of non-toxic harmless inorganic material, compared with the traditional glass wool, asbestos products, do not contain any adhesives, won't make any taste (i.e., not burning, not making any smoke), the characteristic of the soft deflection is easy to cut, cut, the operator is not easy to poisoning, allergies, is existing in all kinds of insulation sound-absorbing materials which have the characteristic of new type environmental protection product. Its main ingredients for silica, alumina and calcium oxide, whether it is heat-resistant, strength, strong toughness resistance, fire resistance, corrosion resistance, electrical insulation and so on are very excellent