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30-40mm Flat Red&Black Sapphire Bezel Insert for Rolex Watches
Why Choose sapphire crystal?
Chemical composition | Al2O3 |
Density | 3.98g |
bending strength | 320-930Pa |
Vickrs hardness | 1800-2200 |
optical transmission | >90% |
melting point | 2050℃ |
Mohs hardness | 9(Next only to diamonds:10) |
Bevel | 0.1-0.5mm |
Coating | upon customer request |
Material | Sapphire |
Shape | Round, square, rectangle; flat, dome, curve, bridge ,pot Cover shape, etc. |
Size | Customized according to customers requirement |
sapphire crystals can withstand considerably higher temperatures than most optical crystals with zero degradation.
Company profile:
JADEZONE Sapphire optical Co.,Ltd. is a factory which is specialized on sapphire glass with 10 years export expreience. Factory covers 3,000 square meters. We got eight patents and one software copyright, and passed the ISO9001 quality certification and ISO14000 environmental certification.
About Factory: