Transparent Convex Double Cylinder Sapphire Crystal Watch Glass
Transparent Double Cylinder Sapphire crystal Watch Glass for Branded Watches
Description of sapphire crystal:
Sapphire is the general name for corundum stones of all colors except the red ruby. Its main ingredient is alumina (AI2O3). Sapphire glass is a synthetic sapphire,Gem-grade sapphires can be easily and cheaply produced in the laboratory and have the same chemical composition and physical properties as natural gems.
Synthetic sapphire is transparent single crystal 99.99% pure Al2O3 that exhibits a unique combination of physical, chemical, electrical and optical
b: Many material could be choiced , include IR material like Ge, Si, Znse, fluoride and so on
c: AR coating or as your request
d: Product shape : round , rectangle or custom shape
Q: Do you provide samples ? is it free or extra ?
A: Yes, but it's a precision product that requires extra cost and freight.
Q: How can I customize my products?
A: Attach your drawings with details (Surface treatment, material, quantity and special requirements etc).
Q: How did you test the product before they are packed?
A: We have strict QC procedure, each product will be tested by three times even more with professional machine before packing.
Q: What if the products we received are not good?
A: Contact us without hesitation, our special after-sales service will take the responsibility.
Q: What's the material of your products ?
A: Sapphire
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