The production technology and quality of wood fire door have relevant regulations, the door frame door fan seam, cut Angle, the deviation in the process of door production, the treatment of the door surface and so on, will be made according to the regulations.

fire rated interior doors oak,30 分の耐火木製ドア、fire retardant timber door with 4″ hinge,4インチのヒンジを備えた防火木材ドア、fire wood door,ul fire wood door,fire retardant timber door with 4″ hinge,4″ヒンジ付きの難燃性木材ドア、fire rated interior doors oak,プレハング黒内部木製フォーマイカ防火扉,fire wood door,fire resistant timber door with 4″ hinge,fire retardant timber door with 4″ hinge,fire wood door,suction electromagnetic lock fire door wooden doorfire rated interior doors oak