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1.71 Blue Cut Spin Photochromic Grey HMC ruwan tabarau na gani
Ingancin substrate yana ƙayyade ƙarfin ruwan tabarau da amincin rufin.Kyakkyawan substrate bayyananne da haske, dogon amfani da lokaci kuma ba sauki zuwa rawaya;Kuma wasu ruwan tabarau ba sa amfani na dogon lokaci akan rawaya, ko ma rufewa.Kyakkyawan ruwan tabarau ba tare da ɓata lokaci ba, ɓarna, saman mai gashi, pitting, ruwan tabarau ba daidai ba don saduwa da kallon haske, ƙarshen yana da girma sosai.Babu tabo, dutse, tsiri, kumfa, fashe a cikin ruwan tabarau, kuma haske yana da haske.
Mafi girman ma'aunin refractive, mafi ƙarancin ruwan tabarau, kuma mafi girman farashin.
