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Anti-Oxidation Silicon Carbide Graphite Crucible. Energy Saving Efficiency: Thermal conductivity 5-8 times higher than ordinary materials. Saves 20-30% energy. Corrosion Resistance: Resistant to strong acids, alkalis, and molten metals. Purity up to 99%+. No material pollution. Extended Service Life: Lasts 3-5 times longer than graphite crucibles. Significantly reduces replacement frequency and downtime. Customizable Dimensions: Bottom diameter and other specs can be customized according to customer demand.