High purity quartz products have excellent properties of high temperature resistance, chemical corrosion resistance and heat shock resistance, and are ideal products for laboratory and industrial metallurgy and calcining applications in chemical, pharmaceutical and biological fields. The product can be used under 1050℃for a long period of time. It can be also used under 1350 ℃for a long period If the product is maintained at a temperature of not less than 300 ℃.
