When making customized fire doors, fire rating requirements should also be installed according to the actual situation. The fire protection rating is relatively high, and the price may also be relatively high. Fire doors are classified into three specifications, namely, Party A, Party B and Party C, with outstanding sound insulation and heat insulation performance.

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.