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  Photochromic Invisible Bifocal lens -Specification   1)Reflative index:N=1.56   2Specific Gravity:1.32   3)Demeter:70mm/28mm   4)Abble Value=38 -Raw Material  
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• Photochromic, Polarized Lenses - Danyang Huarui Glasses Optical Co.,Ltd
  Photochromic, Polarized Lenses, China, manufacturer, supplier, exporter, Danyang Huarui Glasses Optical Co.,Ltd
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