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修改這篇文章 : Steel fire rated doorfire rated steel doors,fire door facotry china,

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Steel fire rated door Fire rating:20minutes,30minutes,45minutes,60minutes,90minutes Steel fire rated door 1.Certificate: Amreican standard UL(ANSI/10B,ANSI/10C) European standard EN 1634-1:2008 Russian stardard EI60(GOST 30247.2-97) Chinese standard GB12955-2008 2.Fire rating: 20minutes,30minutes,45minutes,60minutes,90minutes 3.Door leaf: 52mm thick Sheet thickness 1.0mm Thermal insulateion:ceramic fiber board All-round fire and smoke prevention expansion seal(on 4sides) 4.Door frame: Double rabbet frame with all-round fire and smoke prevention seal Sheet thickness 1.5mm Welded-on anchor brackets(standard) 5.Floor details: With stepped threshold With demountable threshold(opitonal) 6.Surface finish: Door leaf and frame powder coated in RAL color 7.Standard color: RAL 1000,RAL 1015,RAL 1018,RAL 1020,RAL2011 RAL3000,RAL3015,RAL5002,RAL5007,RAL6027 RAL6033,RAL7011,RAL7035,RAL9002,RAL9016 8.Special color Acceptable,in chosen other RAL color 9.Hinges: 4.5"x4.5"x3.4mm stainless steel hinge w/2 ball bearings American-style heavy-duty stainless steel hinge(optional) 10.Lock:Panic bar exit device with lever handle Fire-resistant mortise lock with profile cylinder,keys&lever handle(opetional) 11.Closing devices: Overhead door closer 12.Accessories: Expansion bolts& plastic covers for installation use

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