Graphite electrodes are made of high-quality low-ash materials (petroleum coke, needle coke and coal pitch, etc.), which are calcined, batched, kneaded, shaped, roasted and pressure-impregnated, graphitized, and then precisely machined by professional CNC machining. The electrode has low resistivity, good conductivity, low ash, compact structure, good oxidation resistance and high mechanical strength, and is the best conductive material for electric arc furnaces and melting furnaces.