High strength, Anti-wind pressure,Dustproof,Antifogging,Airtight With so many good character,can keep room clean,safe, sanitary, and be beneficial to human health. Noiseproof ,Noncorrosive ,Durable Multi-cavity structure,insulated glass and thermal break aluminum profile application, can prevent outdoor noise effectively.After surface processing, the window and door have strong weatherability, ageing resistance,and high corrosion resistance. Variegated,Flexible assembly, Diverse opening way. Adjustable modelling and various surface treatment, such as Anodized,Electrophoresis,Powder coating,Fluorine-carbon coating,Imitated wooden grain as so on. Various colors and texture are available.Unique angle connector, convenient assembly. Opening way diverse,such as Casement,Tilt-turn,Single/double hung,Sliding,Folding,Special opening styles and so on