This sliding window has excellent wind pressure resistance, and its air tightness can reach level 8, which is very suitable for areas with extreme weather conditions. These windows are made of thermally insulated aluminum, the cavity is sealed with three layers, and equipped with multi-cavity large insulation strips, which can not only achieve the effect of heat preservation and energy saving, but also provide us with a quiet home environment. The integrated vulcanized welding strip eliminates the gaps caused by the splicing strips, which greatly improves the sealing of the entire window. The awning design can maintain ventilation even on rainy days, and the sturdy structure ensures its excellent windproof performance.