| Place of Origin: | Guangdong, China (Mainland) |
|---|---|
| Brand Name: | Tianzhili |
| Model Number: | Customized |
| Price: | US $4.50 |
| Type: | Watches For Parts | Material: | Sapphire |
|---|---|---|---|
| Size: | Custom Size | Shape: | Custom Shape |
| MOQ: | 100pcs | Surface Treatment: | Polish |
| Feature: | Scratch-resistant | Application: | Sapphire Watch |
| Service: | OEM ODM | Usage: | Watch Glass |
| Coating: | AR-coating | ||
| High Light: | smart watch sapphire crystal,scratch resistant watch face |
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High Hardness Sapphire Optical Window , Scratch Resistance Sapphire Crystal Glass
Synthetic Sapphire Window Technique Index :
Specifications:
Material: Sapphire glass
Color: Clear
Thickness: 1.2mm
Diameter:
Size:25mm/26mm/28mm/29mm/30mm/31mm/34.5mm/38mm
Feature:
Hardness level is 9, just next to diamond
Highly clear
Smooth edge treatment, no scratches
The surface is smooth
High temperature resistant, scratch-proof, wear-resistant
Package Include:
1 x Sapphire Watch Glass
| Property | Specification |
| Thickness | 0.5-50mm |
| Size tolerance | 0.02mm |
| 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 |
Sapphire Watch Glass Show:
Company Information
Inspection equipment
