N-Bk7 High Quality Plano Concave Lens Customized Coating
Focal Length Tolerance
<3 Arc Min
We are proud of the high customer satisfaction and wide acceptance due to our persistent pursuit of high quality both on product and service for N-Bk7 High Quality Plano Concave Lens Customized Coating, The product will supply to all over the world, such as: South Africa, United States, Bolivia, Our company's main products are widely used all over the world; 80% of our products exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.