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Aluminum oxide is a stable oxide of aluminum, with the chemical formula Al2O3. It is a kind of high hardness compound with a melting point of 2054 ℃ and a boiling point of 2980 ℃. It is an ionizable Ionic crystal at high temperature and is widely used in ceramics, refractories, electronics, medicine, machinery and other fields.

Fine alumina, as a key basic material for advanced powder materials, is related to 70% of the national economy industry and covers over 80% of the raw material industry.

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