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Sapphire Glass Dome
描述
联络供应商
描述
- Super Dome
- Sapphire crystal
- Watch dial -ARC
- High hardness - 9H (second only to diamond).
- Scratch resistance (compressive strength 21000kg /cm²).
- Abrasion resistance.
- High mechanical strength.
- High temperature resistance (melting point 2050°C).
- Good thermal stability.
- High optical production rate.
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