... such as seal rings for centrifugal pumps reacting kettle for chemicalengineering, hydraulic generators and rotate baking ... kneading, second grinding, moulded forming, baking, impregnation with pressure, second baking, graphitization in high temperature, ... kneading, second grinding, isotropic forming, baking, impregnation with pressure, second baking, graphitization in high temperature, refinement ...