東京興業貿易商会 List of Products and Services

The "Insulation Ring" is a high-temperature insulation material used in diffusion furnaces and CVD furnaces in semiconductor manufacturing processes. The outer material and sewing thread are made of high heat-resistant alumina long fibers, ensuring a long lifespan. The composition of the outer material consists of 72% Al2O3 and 28% SiO2, with a fiber diameter of 7μm, making it thin and highly flexible. As a high-grade product unique to Nichibi, there are also advanced demand products that use lower impurity materials. 【Features】 ■ The outer material and sewing thread are made of high heat-resistant alumina long fibers, ensuring a long lifespan. ■ A patented product that uses alumina long fibers without boron oxide. ■ Sewn to match the shapes of quartz tubes and silicon carbide tubes. ■ Advanced demand products using low impurity materials are available. ■ The outer material composition consists of 72% Al2O3 and 28% SiO2, with a fiber diameter of 7μm, making it thin and highly flexible. *For more details, please refer to the PDF document or feel free to contact us.