In today's high-tech materials industry, high-purity alumina (Al2O3) is gaining widespread attention due to its exceptional physical and chemical properties. Specifically, 99.7% pure alumina, known as 997 alumina, has become a critical material in industrial production because of its high efficiency in various applications. High-purity alumina is being widely used across many sectors, particularly in semiconductor manufacturing equipment, where it serves as a high-temperature-resistant and insulating component in joints. Additionally, ultra-high-purity alumina with a 99.99% purity is extensively utilized in the production of various optical components due to its transparency and wear resistance.