Sound insulation: Windows and doors are professionally designed and selected. Their sealing property is several times stronger than that of original windows and doors. They can insulate above 30DB noise outside the windows.
Windproof: Wind and storm resistance is ensured by the super thick profile and refined three-dimensional structural shape design and fixing them with screw on the frames of windows and doors.)
Waterproof: The frames of windows and doors adopt a three-cavity design and feature strong rigidity. The independent drain cavity can ensure smooth drainage in any case.
Heat insulation: Quality heat-insulated materials are used and feature strong anti-flaming and fireproof performance
Watertight and Airtight: Highest quality adhesive tape is used and can resist ageing for over 25 years. The air-tightness is less than 0.5M/M.H, and the water tightness is more than 350PA. Therefore, it can prevent gale and rainstorms from against the air windows.
Surface: It is treated with corrosion and ageing resistance, ensuring fresh and beautiful surfaces in any place and environment.
Opening and closing: The pulley rail features an extremely low friction coefficient so that it is easy and smooth to open and close without noise.