This product use activated alumina with quick release production method and peudo boehmite as raw material. By using advanced molding technology, it has characteristics of stable specific surface area, good compressive strength, low wear, suitable pore structure, low impurity content. According to user requirements and by using different process conditions, it can be produced in different appearance and shape for the catalyst carrier. It is widely used in petrochemical, desulfurization industry. The shape can be strip, cylindrical, spherical teeth, leafy grass type, hollow, Rasi ring, etc.