Like I said in recent post both that I will be educating people on to construct some of aluminium Windows by themselves, the program will start soon, which is going to be call DIY(DO IT YOURSELF) where you will know how to construct many Aluminium like. (SLIDING WINDOW, PROJECTED WINDOW, CASEMENT WINDOW, HANDRAIL STAIRCASE, SHOWGLASS, WARDROBE, etc). So if you are interested vote or reply me asap, 
Nice windows