Izicabha zomlilo zihlukaniswa ngokwezigaba zeBanga A, iBanga B kanye neBanga C ngokuya ngokumelana kwazo nomlilo. Isikhathi sokumelana nomlilo somnyango womlilo Wekilasi A akufanele sibe ngaphansi kwamahora angu-1.5, leso somnyango womlilo Wesigaba B akumele sibe ngaphansi kwehora elingu-1, futhi esomnyango womlilo Wesigaba C akumele sibe ngaphansi kwamahora angu-0.6. Izindawo ezihlukene zizofakwa izicabha zomlilo zamazinga ahambisanayo ukuze zisetshenziswe.

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.