Customization: | Available |
---|---|
After-sales Service: | Replace, Refund |
Warranty: | 12months |
Still deciding? Get samples of US$ 10/Piece
Order Sample
|
Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
---|
Payment Methods: |
|
---|---|
Support payments in USD |
Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
---|
Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
---|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
1.Material | N-BK7,FS or based on clients' requirements |
2.Dimensional tolerances | 0/-0.1mm |
3.Surface flatness | Lambda/8@633nm |
3.Clear aperture | >95% |
4.Angle accuracy | 2 arc minutes |
5.Surface Quality | US Standard 40-20,ISO Standard 3X0.16 |
6.Edge Chip | <0.1mm |
7.Bevel | Based on clients' requests |
8.Coating | Metal reflective coating or based on clients' requests |