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*Brand | changmingquartz |
*SIO2 | 99.99% |
*Density | 2.2(g/cm³) |
*Degree of hardness moh’ scale | 6.6 |
*Melting point | 1732℃ |
* Working temperature | 1100℃ |
*Annealing point | 1180℃ |
*Softening point | 1630℃ |




























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