Brand: ET
model: ET-001
place of origin: china
Colour: Transparent
Density: 2.2g/cm3
Silica content: 99.99
use: High temperature
Melting point: 1730
Annealing Point 1215
Deformation point 1120
Mohs hardness 7
Coefficient of expansion 5.5
Refractive index 1.4585
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Semiconductor quartz tile bearing boat