Normally open fire doors are open at ordinary times and automatically close through various sensors in case of fire. The utility model solves the inconvenience caused by the closing of the fire door at ordinary times and the artificial damage caused by the frequent opening and closing of the fire door.

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.