Sapphire Wafer Posted By OpticalProductsExporters -
China
Summary: anisotropic synthetic sapphire crystal al2o3 orientation random diameter
Sapphire Rings Posted By olivechang -
Taiwan
Summary: sapphire stone treatment piece ring identification report gemological laboratory
Product Category:
Sapphire gemstones [10]
Sapphire Windows Posted By OpticalProductsExporters -
China
Summary: sapphire tolerance 0 1mm surface 80 50 clear aperture 85 flatness 25mm