... areas:1. High strength and high tenacity products: magnetic material, piezoelectric ceramics, dielectric ceramics.2. No pollution: medicine, food, cosmetics materials3. wear and ... : coating material, textile, paint, printing and dyeing.4. Ceramics: electronic ceramics, refractory ceramics, structural ceramics.Specifications:Ball shape:φ0.1-0.4,φ0.4 ...