... sphere, smooth surface, pearl-like sheen. 2. Good tenacity, impact-endurable, no break under high speed ... thus ensuring the even quality of material being grinded.2. Tough bead bears impact better, and minimum friction allows minimum ... customized Application: 1) Paint , Coating 2) Ultra-fine grinding for Cosmetic , Magnetic band 3) Superfine grinding mineral (GCC, Kaolin and so on) Low price and ...