According to the different fire resistance performance of steel fire doors, their fire resistance can be divided into three grades: A, B, and c. Steel fire doors of different grades can be used in various places.

door stop for fire door,manifaktirè pòt ki reziste dife nan Mumbai,914mm fire door,fire door basement,

manifakti pòt rezistan dife, pòt rezistan dife pou kay, pòt rezistan dife,914mm fire door,fire door basement,estanda pòt ki reziste dife,door stop for fire door,Faktè lajè pòt sòti, kadna pòt ki reziste dife, faktè lajè pòt sòti,

rezistan dife, penti pòt,door stop for fire door,pòt rezistan dife Malezi, pòt metal