Product Description KDSBuilding Metal Safety Commercial Exterior Rated Fire-proof Price Of Steel Rated Emergency Fire Proof Doors Hotel Exit Door Brand Name KDSBUILDING (China) Product Series Steel Windows And Doors Profile Type Carbon Steel,Stainless Steel; Cold Rolled Steel,Galvanized Steel. Thermal / non-thermal break profile. Profile Color White,Silver,Black,Grey,Blown,Wood Grain,etc. Profile Finish Hot Dipped Galvanized,Powder Coated,Fluorine Carbon Paint,Heat Transfer. Profile Thickness Steel Panel thickness:0.5-1.0mm; Steel Frame thickness:1.0-2.0mm. Infilling Material Aluminum Honeycomb,Honeycomb Paper,Rock Wool,Pu Foam,Magnesium Sulfate Board,Other Fire Proof Board. Glass Type Fire rated glass for steel glass window and steel frame glass door peephole. Glass Layer Single Glass,Double or Triple Glasses (argon filled available) Accessory Fire rated accessories including handle,hinge,lock system,rubber seal,etc. Grille Grille is made of steel profile, placed between the panes of the insulating glasses. Screen Fiberglass / Nylon / Stainless steel mesh & Rolling shutter outside are available. Function Fire Proof,High Strength,Good Insulation,Watertight,Wind Resistance,Anti-ultraviolet,Anti-thief,Durable,Anti-aging. Function Data Thermal Insulation U-Value:≤2.0W/m2K;Sound Insulation:≤36db;Water Tightness:≥450pa;Wind Resistance:≥4500pa;Air Tightness:≤ 0.4m3(m2h)