Description
The semi-crunchy corundum is made of high-quality bauxite as raw material. On the basis of smelting of sub-white corundum, it is made by special smelting process and ratio. After being smelted at 2100 °C or higher in an electric arc furnace, it is made by special crushing process. Because its brittleness and toughness are between white corundum and brown corundum, it is called semi-crunchy corundum.
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