The steel fireproof door has a good airtightness, and it is closed in place and locked tightly, so that no cracks will be left in the door and the cooling and heating will overflow. The steel fireproof door can be provided with windows, louvers, ventilation louvers, etc. as required.

ZHTdoors branddøre, 31 års produktionserfaring indenfor branddøre og vinduer. De vigtigste UL branddøre, EN branddøre, BS EN branddøre osv. Vi har certificering. ZHTdøre understøtter OEM og gratis design. Vores fordele: god kvalitet, fabrikspris, god service. Velkommen til at konsultere os.