Iminyango yomlilo ihlukaniswa ngokwezinto zokwakha futhi ingahlukaniswa: iminyango yomlilo yamapulangwe, iminyango yomlilo yensimbi, iminyango yomlilo wezinkuni, nezinye izicabha zomlilo. Umnyango womlilo awushunqisi uma uvaliwe.

Iminyango yomlilo ye-ZHTdoors, iminyaka engu-31 yesipiliyoni sokukhiqiza eminyango yomlilo kanye neWindows. Iminyango yomlilo eyinhloko ye-UL, iminyango yomlilo ye-EN, iminyango yomlilo ye-BS EN, njll., Sine-certification.ZHTdoors isekela i-OEM kanye ne-design yamahhala.Izinzuzo zethu: ikhwalithi enhle, intengo yefekthri, isevisi enhle.Siyakwamukela ukuthi uxhumane nathi.