Graphite Carbon Block Graphitized Cathode Carbon Block for Building Furnace and Aluminum Electrolytic Reduction Cell. Premium Material Composition: Crafted from low ash petroleum coke and needle coke for superior quality. High Electrical Conductivity: Ensures efficient performance in ladle furnaces and electric arc furnaces. Customizable Dimensions: Diameter ranges from 75-800mm and length from 1000-3000mm. High Purity Grade: Achieves 99% purity with bulk density between 1.58-1.74 g/cm3. Customizable Logo: Logo customization is available to meet specific branding needs. OEM and ODM Services: Offers full customization, minor customization, and flexible options. Rapid Delivery: Standard delivery time is 7-10 days for most orders. ISO 9001 Certified: Factory holds ISO 9001:2015 certification for quality assurance.