Nano sports sunglass lens
Product Description
1. The lens is made of the newest compound nano material ,which mixes nano metal oxide and CR-39 together by applying national 863 program technology.
2. The world’s first , proprietary technology, appraised as international advanced level by expert panel of Burea of Technology
3. The lens uses international first-class nano material “nano mateal oxide”,size at 20—40nm
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