70mm – This is a low cost window series with two tracks. Options available – Sliding & fix, Top Bottom Sliding, Sliding & Louver.
80mm - This is an enhanced series of sliding windows with better weather resistance to wind pressure & water penetration. Can improve to 3 tracks with other options (1.5mm wall thickness). This window is recommended for high rise buildings.
100mm – This is designed to give a better look for the window. 100mm width of the outer profile. Single track. Profile thickness 2mm & 1.5mm.This is heavily used for apartment buildings & high rise buildings.