... beads for grinding,blasting,polishing and reflecting mark Specifications 1 Character: Colourless and transparent ball, no visible bubbles and impurity. ... good chemical stability, certain mechanical intensity and hardness, so as polishing and grinding.Donot pollute the processing metal.,accelerate ... as request. 3.Applications: 1: Blasting and cleaning 2: grinding media for the pigment, ink, etc.Normally ...