we can supply industrial parts its content is 95%-99% alumina oxide, it is widely using in mechanical parts, electrical parts. The industrial ceramic have good characters as high-intensity, abrasion-resistance, high temperature resistance, corrosion resistance, good electrical intensity resistance. We can produce it according your drawing. Blending strenth 280MPa/cm3 Coefficient of expansion (6.5~8)*/°C Dielectric strenth 5KV/mm Dielectric constant 8-10 Al2O3 Content 95% Volume Density 3.65g/cm3 Rate of volume resistamce 100 &Omega.cm