High alumina ceramic parts,high alumina part,alumina ceramic,alumina part good quality&low price wear resistance High alumina ceramic parts,high alumina part,alumina ceramic,alumina part Properties of Alumina/Aluminum Oxide (Al2O3)· Very good electrical insulation (1x1014 to 1x1015 Ωcm) · Moderate to extremely high mechanical strength (300 to 630 MPa) · Very high compressive strength (2,000 to 4, ...