and carbon fiber are high-performance materials, carbon fiber has obvious advantages compared with in terms of strength and lightweight, but also has obvious disadvantages in terms of cost performance and insulation performance of the material. Fiberglass is still the core key material for the promotion and application of large megawatt low-cost blades, and it will drive a significant increase in the demand for fiberglass in the field of wind power, especially the increase in the use of large megawatt blades.