From the point of view of the inside and outside materials of the steel fire door, filler or outer steel materials are the best choice, the internal filling can play the best fire retardant effect, the external can most effectively protect the internal materials, in the actual use process to play the best level, steel fire door to achieve the best flame retardant effect.

internal doors with safety glass,seuneu dipeunteun panto najong plat,9 foot doors,safety gate 90cm wide,

produsén panto tahan seuneu,internal doors with safety glass,panto kaamanan baja ganda kalawan hardware, gambar panto kaamanan kai pikeun rumah susun,9 foot doors,dimensi lawang kaamanan,gerbang kaamanan rubak 90cm,panto kaamanan baja precision, seuneu dipeunteun panto 90 menit, dilabélan panto panel,

lawang kayu fireproof,gerbang kaamanan rubak 90cm,pamakéan panto kaluar darurat, seuneu dipeunteun panto ul, seuneu dipeunteun panto padumukan