AR Blue Coating Watch Sapphire Glass CrystalProduct Description MaterialSapphireorMineralWorkingTolerance±0.02~±0.05VickershardnessHV2000-2500ShapeCustomized,ourengineercanasperyourideamaketheengineerdrawingColor/CoatingCoatingElectroplating/metalizationSilkscreenprintPaintTransmission85%bycoating0-60%bysemitransparentinkGlassatomizUSEWristWatch,Phone,smartwatch,tools,Jewelry,opticlsystem,photographicsysem,Lightingsystem,Electronicapparatuse.g.laser,camera,monitor,projector,magnifier,telescope,polarizer,electronicinstrument,ledetc.
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