The door frame of UL fireproof door is made of galvanized steel plate, and the door leaf is made of galvanized steel plate, stainless steel plate, and coated steel plate. The interior is filled with perlite fireproof door core plate. The fire resistance rating of UL fireproof door is 20-180 minutes, please consult us.

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.