1 . thermal insulation performance: glass wool manufacturing is made into fiber by centrifuge first, and then by precipitation, curing, cutting and other processes made of felt like products. The air hole in the middle of the glass fiber forms a natural air layer, enhancing the heat insulation of the glass itself. It is a good insulation material. 2 . sound insulation performance: sound through glass wool, through the tiny vibration of the fiber will be converted into heat, weaken the transmission of sound. 3 . fire performance: because glass itself is like crystal, is a relatively high temperature resistant material. The highest temperature can reach 250℃, suitable for residential use. Types and uses of glass wool: 1 . glass cotton roll: the product is widely used in factories, warehouses, freezers, stadiums, exhibition centers, breeding and insulation shed; Steel structure and various indoor playgrounds. 2 . glass wool board: glass wool board is divided into two categories: no ve