quartz crystal:Quartz is made of natural crystal and silica High temperature resistance：Quartz glass can be used at 1100 ° C for a long time. Good thermal stability. Quartz glass has a very small coefficient of thermal expansion can withstand severe temperature changes, and is stable at high temperatures. preservative. In addition to hydrofluoric acid, quartz glass hardly reacts with other acids. The latest fashion design,quality after-sales service For the same goods, we have better quality assurance Premium quality, Price Match Guarantee, please rest assured to buy Please feel free to contact our customer support team when you have any question,and you will receive a satisfactory reply
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