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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 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.