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Product Name:99.7% Al2O3 Ceramics made by CNCProduct Number:99.7%-799.7% Al2O3 Ceramics specifications Al2O3      [%]˜99.8MgO       [%]˜0.1Na2O       [%]˜0.04SiO2       [%]˜0.06Fe2O3      [%]=0.01specific gravity (g/cm3)3.93Vickers hardness(HV)2000compressive strength(Mpa)3900Bending strength(Mpa)390Coefficient of thermal expansion(10-6K-1)5.5~8.4dielectric strength(Ocm)30polishing (µm)Ra<0.1
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