Ana amfani da ɗakin gwajin tsufa na UV don daidaita lalacewar hasken rana, zafi, da zafin jiki ga kayan.Tufafin kayan abu ya haɗa da dusashewa, asarar sheki, kwasfa, murƙushewa, raguwar ƙarfi, fatattaka, da oxidation.Ta hanyar kwaikwayon hasken rana, daɗaɗɗen ruwa, da hum na halitta...
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