Teddy Bear Toy filling beads 3-4MM clean glass beads The glass beads,composed of Si,Na and Ca,are broken and calcined by high temperature after which the said microspheres are obtained.With properties of the high roundness rate,better hardness,excellent anti-friction and direct reflect light .They are widely applied in the fields of plastic rubber,abrasion ground,blast derusting,road-reflect dope and handicraft lamp,etc. Size:20-40mesh SiO2: 65%min Na2:14%max CaO: 8%max Packing: 25kg pp bag, 40bags into 1 jumbo bag
