A: Yes, we are a professional manufacturer of optical components, we have more than10 years experience in optical cold working.
A: Generally we process the lens according to the drawings, so there is no sample before placing an order.
A: Yes, we can custom the material, specifications and optical coating for your optical components as your requirement.
A: Usually 50% as deposit, and 100% before delivery. We would show you the photos of the products before you pay the balance.
A: Generally, it takes 7 to 20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.