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1.74 Xiav Txiav Tig Photochromic Grey HMC Optical lenses
Cov iav resin yog cov iav uas tsim los ntawm kev siv tshuaj lom neeg thiab txhuam nrog cov iav resin ua cov khoom siv raw. Cov iav resin muaj qhov zoo pom tseeb, nws qhov hnyav yog sib dua, hnav yooj yim dua; Qhov thib ob, cov iav resin muaj zog tiv taus kev cuam tshuam thiab tsis yooj yim tawg thiab muaj kev nyab xeeb dua; Tib lub sijhawm, cov iav resin kuj muaj lub teeb kis tau zoo; Tsis tas li ntawd, cov iav resin yooj yim rov ua dua kom tau raws li qhov xav tau tshwj xeeb. Thaum kawg, ua ke nrog kev tsim kho tshiab thiab kev txhim kho ntawm cov txheej txheem txheej, cov iav resin kuj muaj kev tiv thaiv kev hnav zoo, yog li lawv tau dhau los ua cov iav tseem ceeb hauv kev ua lag luam.
