High-Temperature Heating and Insulation: Serves as an outer protective tube for heating elements in high-temperature furnaces. Its excellent electrical insulation prevents leakage, while high-temperature resistance and corrosion resistance ensure stable furnace operation.

Metal Smelting and Transfer: Used as flow or sampling tubes for molten metals such as aluminum and copper. Its chemical inertness prevents reactions with molten metals, and its non-wetting properties help avoid material residue.

Electronics and Semiconductor Applications: Acts as high-temperature insulating supports or RF component insulating sleeves in semiconductor processes. Low dielectric loss and high electrical insulation make it suitable for high-frequency and high-temperature electronic environments.

Laboratory and Materials Synthesis: Applied in laboratory high-temperature reaction tubes. Its thermal shock resistance and chemical stability ensure safe experimental processes and prevent contamination of reactants.