In addition to the functions of ordinary doors, fire doors also have special functions of fire prevention, smoke separation, fire suppression and evacuation protection. The fire door can only meet the requirements of fire integrity within the specified fire resistance time, and the fire integrity levels are 1.0h, 1.5h, 2.0h and 3.0h respectively.

ZHTdoors milango ya moto, miaka 31 ya uzoefu wa uzalishaji katika milango ya moto na Windows. Milango kuu ya moto ya UL, milango ya moto ya EN, milango ya moto ya BS EN, nk., Tuna certification.ZHTdoors msaada OEM na bure design.Our faida: ubora mzuri, bei ya kiwanda, huduma nzuri.Karibu kushauriana nasi.