What is Sapphire Crystal Glass? : Citizen Eco Drive Watch

What is Sapphire Crystal Glass? : Citizen Eco Drive Watch

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日期:2024-08-26
Sapphire Crystal - the most hardest oxide crystal,which is the basic crystal morphology of alumina (Al2O3) . It posseses the characters of high strength, high hardness, high heat-resistance, wearability, corrosion resistance and light transmittance perfor...看更多