It is made from refined quartz sand after high temperature melting, urgent cooling, breaking up and hand classification. Main compositionsSiO2≥99.9-99.98%, Fe2O3≤0.002%. The first grade products is transparent, some is fogged. It can be processed into sand and powder as request. The annual output is 8,000 tons. Granularity range10-1mm, 1-0.5mm, 0.5-0.2mm, 0.2-0.1mm.The products are made by advanced technology and equipments such as materials colliding and striking machine, magnetism election machine, shaping machine, sieving machine, airflow disintegrator, shaking machine and classification machine. There is no impurity mixed and the component dose keeps unchangeable. The granularity can be adjusted as request.Main useIt is used in high-grade refractory materials and electrical industry. It is exported to Japan, South Korea, USA and Europe.