... sphere, smooth surface, pearl-like sheen. 2. Good tenacity, impact-endurable, no break under high speed Description:1. The internal ... thus ensuring the even quality of material being grinded.2. Tough bead bears impact better, and minimum friction ... 1.0-1.2,1.2-1.4,1.4-1.7, 1.5-2.0,2.0-2.5,3,4 ... or to be customized Application: 1) Paint , Coating 2) Ultra-fine grinding for Cosmetic , Magnetic band 3) ...