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Alumina crucibles are high-performance ceramic products widely used in industrial production and laboratory environments. Alumina (Al2O3) is the ideal material for manufacturing crucibles due to its excellent high-temperature resistance, corrosion resistance, and good thermal conductivity. Alumina crucibles are not only employed in laboratory and alloy smelting applications but are also extensively used as heating containers in medium- and high-frequency induction furnaces, electric furnaces, and vacuum furnaces. They can withstand temperatures ranging from 1500 to 1650°C and exhibit strong corrosion resistance, particularly against most acidic substances except hydrofluoric acid. 
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