Sapphire crystal material
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5N high-purity alumina polycrystalline raw material
1. Sapphire single crystal 2. LED substrate wafer 3. Smartphone cover glass 4. Glass coating
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5N high-purity alumina polycrystalline block material & crushed crystals
1. Sapphire single crystal 2. LED substrate wafer 3. Smartphone cover plate 4. Optical glass coating
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1. Sapphire single crystal 2. LED substrate wafer 3. Missile nose cone 4. Smartphone cover glass
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