What are Polarized lenses?Polarized lenses are one of the most used lenses in middle and high-end eyewear.The common ones are CR-39 Polarized lenses.
What are pc lenses?What are the feature of PC lenses?PC lenses are polycarbonate lenses,it's very thin and light in weight,and it is also one of the m…
What are nylon lenses? What the feature and craft of nylon lenses? Nylon lenses are widely used in eyewear of various materials because of their good …