Qhov nruab nrab kub rwb thaiv tsev no tshwj xeeb yog siv rau UV resin, txuam nrog UV resin, tshav kub rwb thaiv tsev qhov rais zaj duab xis yog muaj yooj yim los ntawm txheej los tiv thaiv khawb txheej nrog tshav kub rwb thaiv tsev muaj nuj nqi.Nws muaj qhov zoo ntawm kev siv yooj yim, tus nqi qis, siab txhais.Thaum pom lub teeb transmi...
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