The classification of steel fire doors is clear. According to the different fire resistance of steel fire door, its fire resistance can be divided into A, B, C three grades, different grades of steel fire door can be applied to various places.

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mtengenezaji wa mlango sugu wa moto,fire label door,mlango mkuu usio na moto, nyenzo za mlango wa kuzuia moto,custom door dimensions,unene wa mlango uliokadiriwa moto, mlango wa chuma x, matumizi ya mlango wa dharura, mlango uliokadiriwa moto dakika 90,door rating labels,

milango ya mbao isiyo na moto,fire label door,matumizi ya mlango wa dharura wa kutokea, mlango uliokadiriwa moto ul, makazi yaliyokadiriwa moto