Synthetic gem crystal
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Al2O3 99.999% gold yellow champagen sapphire material corundum
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99.999% Al2O3 sapphire colorful red ruby material gemstone
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Sapphire Corundum for Gemstone Al2O3 crystal ruby royal blue
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Surface processing method of titanium-doped sapphire crystal laser rods
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Square Ti:Sapphire windows dimension 106×5.0mmt Doped Ti3+ or Cr3+ ruby material
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Lab-created rubies/rubies for sale Ruby# 5 Al2O3
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Ruby material Artificial corundum for gem oringinal material Pink red
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Pigeon blood ruby material doped Ti3+ Cr3+ for gem watch glass