Description
Technical Parameters
American standard steel fire rated doors
Intertek certification and FM certification
90 minutes, 180 minutes fire rating
infilling: fireproof polystyrene, honeycombe, mineral fireboard
leaf&frame material: cold roller steel, galvanized steel, galvanealed steel
leaf thickness: 20ga, 18ga, 16ga
frame thickness: 16 ga, 12ga
build own distributer center in American and Canada since 2008
factory located in seaport city , convenient shipping
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