Product Review

Safe to use:
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.

quality after-sales service:
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