... in a scientific formula through the process of mixing, pressing, baking and graphitization (above 2500 degrees).Therefore, it has the good ... of manganese dioxide, metallic magnesium and rare metals; 6. Graphite Blocks are molded or extruded or isotropic or vibrating graphite ... material, electric conduction material or impermeable graphite heating converters. graphite/ carbon blocks Wm :700mm Lm:3800mm