The fire resistance time of Class B steel fire door shall not be less than 1.0 hour, and the hardware fittings used on the fire door must also be fire-resistant hardware fittings.

fire rated door 45 minutes,fire resistant door manufacturers in mumbai,fire rated door astragal,fire rated door definition,

fire resistant door manufacturer,fire resistant doors for home,fire resistant door,fire rated door 45 minutes,metal security door,fire resistant door standards,fire resistant door,fire rated door astragal,fire resistant door locks,fire rated door definition,

fire resistant,door paint,fire rated door 45 minutes,fire resistant door malaysia,metal door