PRODUCT
Product Description
specifications： 70/72 (mm)
Product description：
1.56 mid-index progressive
Progressive lens: The same vice lens has no obvious boundaries to see far, in, and close, from the middle of the vertical direction won’t feel jump phenomenon when see from far to near , but the cost higher,
index ：1.56
abbe value：38
specific gravity：1.19
available range：
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