Large-diameter quartz tubes are made of high-purity quartz material, with diameters reaching tens of centimeters and a maximum diameter of one meter. They possess characteristics such as high temperature oversized fused quartz tube for high temperature applications resistance, corrosion resistance, and excellent light transmittance, making them suitable for large high-temperature furnaces. They are used in large-scale production in fields such as photovoltaics, semiconductors, and metallurgy, and are key components of large-scale heat treatment equipment.