Dab tsi yog cov cuab yeej saib xyuas kev ncig xyuas siv rau?Guard Tour Device feem ntau yog siv rau cov neeg saib xyuas kev ruaj ntseg, tu cov neeg ua haujlwm hauv tsev, khw, hoobkas, tsev kawm ntawv.Tus neeg saib xyuas kev nyab xeeb tau hais kom taug kev ncig xyuas qee yam kev nyab xeeb, cov neeg ua haujlwm tu neeg raug hais kom ntxuav cov pej xeem hauv ib qho chaw tsis tu ncua ...
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