pre-baked consumable Carbon Anode made from petroleum , and coal tar pitch,through mixing,forming and baking processes,be used as anodes in cells of Primary Aluminum Smelter. Pre-baked Carbon Anodes Produced by Carbon has the property of lower Ash content Lower Sulfur content,and Higher Compress strength. CO2 Reactivity Residue can reach above 91%, and Air Reactivity can reach above 96%; the life-span in cells of aluminum electrolysis is 30-33days, with s anodes the carbon consumption required for producing one-ton primary aluminum will reduce by about 30Kg than using Pre-baked Carbon Anodes produced by other suppliers. Higher thermal shock Resistance;Thermal Exposure: