90 Degree 4mm Wall Thick Quartz with Glow Ball Glass Collector (14mm Male);

Safe to use： Color: transparent
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.

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