Steel Door

windows and door are dedicatedly designed and selected, their sealing property is several times higher than that of original windows and doors. They can insulate above 30DB noise outside the windows. 2.Wind proof strong firmness is ensured by super thick profile and refined three dimensional structural shape design and fixing them with screw on the frames of windows and doors. 3.Water proof the frames of windows and doors adopt three-cavity design and feature strong rigidity, the independent drain cavity can ensure the smooth drainage in any case. 4.Heat insulation quality heat-insulated materials are used and feature strong anti-flaming and fireproof performance. 5.Watertight and Airtight imported adhesive tape is used and can be resist aging for over 10 years, the air tightness is less than0.5M/M.H, and the water tightness is more than 350PA, therefore, it can prevent gale and rainstorm from against the air windows. 6.Surface it is treated with corrosion and aging resistance, which ensures fresh and beautiful surface in any place and environment. 7.Opening and closing the pulley rail features extremely low friction coefficient, it s easy and smooth to open and close without noise.