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4 inch sapphire substrate thickness 0.5mm SSP size customized
8 Inch Sapphire Wafer Diameter 200mm Thickness 1.0mmt DSP Optical Window
6 Inch Sapphire Wafer Substrate Diameter 150mm Thickness 1.0mm DSP Al2O3 99.999%
4 inch sapphire substrate thickness 0.5mm DSP size customized
sapphire wafer 2inch single side polish double side polish 0.43mm thickness