What is the technical sapphire?

Technical Sapphire is sapphire windows for optical application; sight windows for high-pressure, deep Sea, security, reseach and other application; sapphire tubes for plasma, medical, high-pressure and semiconductor application; sapphire prisms for optical and military application; sapphire domes for high-pressure systems and missile nose domes, sapphire wafers for semiconductor and LED fabrication.

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