What do the values of “ Nd “ and “ Vd” mean in optical glass filed?
QuickSet Auto Glass Tool – VD-K Tools Auto Glass Replacement
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Amazon.com | Cadamada Wine Glasses Set of 8, 12oz Red Wine Glasses, for Red or White Wine, High-end Banquet, Wedding, Gift, Lead-Free Red Wine Goblets, Party, Bar, Anniversary, Housewarming: Wine Glasses
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VD-LM-GD02 Pear textured laminated glass gradient color | VSOM GLASS