USES: iron oxdied black in building materials industry is mainly used for chromatic cement, cement  floor tile, color chromatic cement watts, imitation glazed tile, concrete floor tile, color mortar, color,  terrazzo, asphalt, Mosaic tiles, artificial marble and metope paint, etc.; In the coating paint industry, mainly used to manufacture all kinds of paint, coating, ink. In other industries, such as ceramic,  rubber, plastic, leather sponges off light pulp used to do colorants and filling agent.