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- Sapphire is a single crystal which is grown by high purity(99.9%) Al203
at the 2300°C high temperature.
- Sapphire has high scratch - resistant, abrasion - resistant and very widely
optical transmission band from UV to mid-IR
- With these feature of sapphire, we manufacture various type watch glass,
for examples cylindrical glass, curved glass, angle glass, single globe side
glass and so on.
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