... 3.Smooth finish Ultra fine grain graphite crucible with precious dimension controlThe feature of the graphite ... , kneading, second grinding, moulded forming, baking, impregnation with pressure, second baking, graphitization in high temperature, refinement ... , kneading, second grinding, isotropic forming, baking, impregnation with pressure, second baking, graphitization in high temperature, refinement ...