Iingcango zomlilo zensimbi ze-UL zinemilinganiselo yomlilo ukusuka kwimizuzu engama-20 ukuya kwiiyure ze-3. Umnyango womlilo we-UL Xa umlilo uvela, umnyango womlilo unokuthintela ukusasazeka komsi kwaye unokuthintela ngokufanelekileyo ukusasazeka komlilo.

ZHTdoors iingcango zomlilo, iminyaka eyi-31 yamava okuvelisa kwiingcango zomlilo kunye neWindows. Iingcango eziphambili zomlilo ze-UL, iingcango zomlilo ze-EN, iingcango zomlilo ze-BS EN, njl., Sine-certification.ZHTdoors ixhasa i-OEM kunye ne-design.Our yamahhala: umgangatho omhle, ixabiso lefektri, inkonzo enhle.Wamkelekile ukuba uqhagamshelane nathi.