The steel fire door leaf can be divided into three standards according to the thickness. The higher the standard, the better the sound insulation and heat insulation effect of the fire door.

fire resistant door,fire resistant doors for flats，4 hour fire safe,exit door ,

yong’inga chidamli eshik ishlab chiqaruvchisi, uy uchun yong’inga chidamli eshiklar, yong’inga chidamli eshik,exit door,4 hour fire safe,yong’inga chidamli eshik standartlari,fire resistant door,exit door ,fire resistant door locks,4 hour fire safe,

fire resistant,door paint,fire resistant door,yong’inga chidamli eshik Malayziya, metall eshik