... designed by your requirement. 2.security and durability style engineered for school ,house ,factory ... health. Noiseproof ,Noncorrosive ,DurableMulti-cavity structure,insulated glass and thermal break aluminum profile application, can prevent outdoor ... Variegated,Flexible assembly, Diverse opening way.Adjustable modelling and various surface treatment, such as Anodized,Electrophoresis,Powder coating ...