... and low cost used for grinding or shot blasting.Intensive Glass Beads: It features good internality, wear-resistance, and chemical stability ... .0-3.53.5-4.04.0-4.54.5-5.0Wear-resistance Glass Beads: It features high density, wear-resistance, chemical ... .5-3.03.0-3.53.5-4.0Pure White Glass Beads: It is colorless, featured good clarity, chemical stability, less ...