| *Brand | GUANGWEI |
| *SIO2 | 99.99% |
| *Density | 2.2(g/cm³) |
| *Degree of hardness moh' | Scale 6.6 |
| *Melting point | 1732ºC |
| * Working temperature | 1100ºC |
| *Resistance Value | 1000 times than ordinary glass |
| *Annealing point | 1180ºC |
| *Softening point | 1630ºC |
| *Ligth Transmittance | >92% |
| *Package | Package in a carton or wooden case |
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