High Effective Corrosion and Mosaic High Alumina Ball for Ceramic Tower. High Compressive Strength: Compressive strength exceeds 12000 MPa for superior durability. Low Porosity: Apparent porosity is less than 1%, ensuring high density and strength. Customizable Sizes: Size and thickness (3~50mm) can be customized according to your request. Free Samples Available: Stock samples are provided free of charge, excluding freight costs. Wide Application Range: Used for thermocouple protection, furnace liners, and heating tubes. Professional Lab Support: We have our own lab and reply within 1 hour for technical support.