Fused quartz
Fused quartz, is a kind of high-quality fused quartz sand with high purity, good crystal and low expansion coefficient, which is formed by crushing, pickling and manual selection of natural ore with S2 greater than 99.95 and after 1800 ℃ high temperature. It is widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical solvent, metallurgical construction, chemical industry, plastics, rubber, etc abrasive, filter material and other industries.