... ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc.1. Main properties and ... acid, stable chemical property Range of application can absorb X-ray, and endow the materials with high density and ... ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc. 2.Quality Index NO ...