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XIAMEN ASPORT IMPORT & EXPORT CO., LTD.
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High Quality CR-39 1.499 Colorful Tinted Sunglasses Lens
OverviewQuick DetailsPlace of Origin:Fujian, ChinaBrand Name:AsportModel Number:DGS1600Lenses Material:ResinVision Effect:Single VisionCoati
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Cheap, Simple, High Quality
Meet CR-39
CR-39 is the name of the monomer base that makes up the lens material in inexpensive plastic lenses.
Owned by PPG, this material revolutionized lens making. Half as heavy as glass, far less likely to shatter, and optical quality nearly as good as glass. CR-39 is heated and poured into optical quality glass moulds – adapting the qualities of glass very closely.
Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG).
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