Glass fiber is woven from alkali free glass fiber yarn, which has a certain degree of heat resistance and insulation. It is mainly made of shuttle free woven fabrics. According to the fabric structure, it can be divided into plain weave, twill weave, satin weave, herringbone weave, broken twill weave, etc. The appearance is clean, smooth, and undamaged. It is a good insulation material, mainly used for binding motors, transformers, communication cables, and electrical appliances, and is also a good fiberglass substrate.