Wristwatch Wear Resisting Sapphire Crystal Watch Case With Date Window
Sapphire Crystal Watch Case with Date Window for Wristwatch
Sapphire Crystal Feature:
1# Hardness level is 9, just next to diamond
2# Highly clear
4# The surface is smooth
5# High temperature resistant, scratch-proof, wear-resistant
Sapphire crystal description:
Sapphire Glass Product parameters :
glasssurface technologypolishing ,chamfermiddle height random.contace me if you have other specific needsThese round sapphire glass crystals come in a variety of thicknesses and diameters, are nearly unbreakable crystals making them highly prized by watchmakers.
Sapphire Crystal Application:
1. for high-class watches
2. for Led
3. for manufacturing equipment of semiconductors
4. for medical equipment
5. for beauty equipment
6. for jewelry pendant
7. other unique products
Sapphire watch crystal FAQ:
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