Specification:- Material: Schott N-BK7
- Diameter: 76.20+0.05/-0.13mm
- Center thickness: 4.0+/-0.1mm
- ROC1: 200mm+/-3%,CC
- ROC2: 200mm+/-3%,CX
- Surface flatness: S1&S2:PV<1/[email protected]
- Surface quality: S1&S2:10-5
- Centerness: <3arcmin
- Clear aperture: >90%
- Chamfer: <0.5mmx45deg
- Coating: uncoated
- Standard: MIL-PRF-13830B
Inspection:
FAQ:
1. Are you a manufacturer or trader? Can I visit your factory or office?
We are a manufacturer. We have factories in Jiangsu and Zhejiang provinces.
In order to provide better and in-time services, we set up branches in US, Germany and Netherlands.
You are welcome to visit our factories and offices at any time.
2. What's your payment term?
T/T, D/P, Letter of Credit, Western Union etc.
3. What's your minimum order quantity for this item?
1 unit.
4. Could I get free samples before making an order?
Your samples fee will be refunded when you place volume order.
5. Can I get a catalog?
Of course, please contact our salesman to get a catalog.
6. What's the lead time?
15-30 days, it is up to your quantity and specification and our stock.
If in stocks, once you make the payment, your products will be sent within 2 days.
7. What's your price list and discount?
The above price is our reference price, if you would like to know more our exact and discount policy, please email us or call us directly.
8. Can you OEM or ODM?
Yes, we accept all OEM and ODM.
9. Do you give a warranty of your products?
Yes, if there is a quality problem, please kindly provide the pictures to show the problem by email.
We will rework or provide the replacements to you at our cost.
Complaint
