Umnyango we-UL ongenamlilo ubhekisela kumnyango waseMelika ongenamlilo oqhelekileyo, onokuhlangabezana neemfuno zokuzinza kokumelana nomlilo, ukunyaniseka kunye nokufudumala kwe-thermal ngaphakathi kwexesha elithile. Iingcango zeengcango zomlilo ze-UL ziya kugcinwa zifakwe kwaye zikhululekile kwi-perforation (uvavanyo lomlilo kunye nempembelelo yamanzi).

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.