1. 10-5000UM 2. Perfect Sphere with smooth and shining surface 3. Remarkable chemical stability 4. No ... of remarkable strength, hardness and chemical stability, perfect regularity and clean surface, good fluidity, less consumption and easy to control, the ... fields of chemical materials, paint, dye materials and pigments, goods medicines and so on.Technical DetailsNoItemGY1-M SeriesGY4-M Series1Chemical ...