Active Member
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[China]
Address: 1610, Building 2B, Phase 2, Jindi Longcheng, Longcheng Street, Longgang District, Shenzhen, Guangdong, China
Contact name:Jeff
Shenzhen Tianzhili Crystal Co., Ltd. |
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Professional Sapphire crystal watch surface cover with traditional date window deside
The advantages of sapphire glass make it an ideal screen material for consumer electronic devices. Consumers are looking for devices that could stand day-to-day use amid unexpected overuse.
| Property | Specification |
| Thickness | 0.5-50mm |
| Size tolerance | +0.0/-0.25 |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Surface Flatness | λ/4 @ 633 nm |
| Parallelism | ≤3 arc min (≤0.9 mrad) |
| Clear Aperture | >80% of central diameter |
| Hardness (Knoop) | 1370 kg mm-2 |
| Young's modulus | 3.4 x 1011 N m-2 |
| Thermal Limit | 22 W m-1 K-1 |
| Thermal expansion coefficient | 8.4 x 10-6 K-1 |
9H Hardness Round Convex Sapphire Glass Used For Sapphire Watch Feature
Quick Details
Brand Name:Tianzhili
Place of Origin:Shenzhen
Type:Watches for Parts, Watches surface cover
Material:Sapphire
Color:Transperant
Shape:Round
Surface treatment:Polished
Craftsmanship:High quality
Packaging & Delivery
MOQ: 100+ pcs
Coating
Color: Blue, Purple, Transparent, Neutral, Gray-Blue, Smoke, Tea
Layers: 3~10 layers
Single side OR both side
Hard coating
Electroplating / Metallization
Color: Black, Golden, Pink Golden, Blue...
Delivery time: Sample order 1-2 weeks since received payment
Usual order 10-30 days since received deposit
Shipment: Usual air transport; fast air transport DHL, UPS, EMS, TNT, FedEx
Export experience: 14 years since 2004
Welcome to ask/inquire some details/another of any color and effect
of coating and metallization.
Company Information
