Industrial-Grade Hardness: It provides outstanding abrasion resistance and mechanical strength for demanding environments Heat Resistance: Made from 99% alumina ceramic, this tube endures high temperatures up to 1650°C, perfect for high-temperature furnaces, heaters, and thermocouple insulation Precision Machining: The ceramic tube is finely processed with high dimensional accuracy and smooth surface for stable integration in lab and industrial setups Electrical Insulation: Excellent dielectric properties make it ideal for high-voltage insulation, power devices, and sensor protection Application. Mainly used in electric heating elements, protection sheaths, insulators., Manufacturer: PULaif