Glass fiber yarn is mainly used as electrical insulation materials, industrial filtration materials, anti-corrosion, moisture, heat insulation, sound insulation, shock absorption materials. It can also be used as a reinforcing material to make reinforced plastic or reinforced plaster and other FRP products. The organic material coated with glass fiber can improve its flexibility, which can be used to make packaging cloth, window screen, wall cloth, covering cloth, protective clothing and anti-electricity, sound insulation material.