Aluminium Window,Aluminium Casement Window,Glass Window 1,Material:Aluminium 2,Type:Casement 3,Glass:single/double tempered Aluminium Window,Aluminium Casement Window,Glass Window 4.Thickness of material ... like Germany Roto,G-u or Chinese top brand like GuoQing,LianXin,ChuGuang).11.Advantages ... easy to clean12.Advantages of Aluminum windows:1)top quality,durable and strong2) Elegant appearance . ...