High silica glass fiber cloth is a good thermal barrier for ultra-high temperature heat flow and jet flame, and a reliable protection device for personnel and facilities; its thermal conductivity is low, it has good resistance to high thermal shock, and it is inert to most chemicals. Compounds, corrosive minerals, and weakly alkaline molten alloys at high temperatures have good corrosion resistance, and can continue to work normally

　　under high heat and strong radiation conditions.