Each insert is precision-engineered from a premium engineered polymer, delivering exceptional strength, dimensional stability, and lightweight performance while presenting a rich ceramic finish with a clean, consistent surface quality. Amphoria Ceramic Female Flanged Threaded Insert Systems are designed for makers who demand precision performance and a refined, high-end metallic aesthetic. The WRI insert is ideal for all recycling applications (concrete, rubble, asphalt). The MasterCeramic™ insert provides deeper protection for the hammer, ensuring longer service life, reducing downtime, saving hours of maintenance, and. Innovacera technical ceramic inserts are engineered for downhole bridge plugs and frac plug slips systems, main size is OD9mm*6mm. Generally they are made by zirconia ceramics or silicon nitride ceramics, depends the using condition, it is widely used for oil and gas industry solution.