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Black Alumina Rod Al2O3 Ceramic Solid RodThe black alumina ceramic rod is primarily composed of alumina and is enhanced with a specific proportion of carbon powder, undergoing a unique processing technique to attain its distinctive black hue. This product surpasses traditional alumina rods in terms of electrical insulation, high-temperature resistance, corrosion resistance, and wear resistance, while also possessing exceptional light-blocking properties that cater to specific requirements and applications in diverse scenarios.