After the wet installation of aluminum alloy doors and windows is complete, the installation of glass and Windows can begin, before removing the adhesive tape or plastic tape of protection and dirt from the window frame section.
After the installation of the glass and sash of aluminum door and frame, it should be checked whether the fittings are missing, whether the installation is firm, and the sash is open and closed flexibly. Before acceptance, the outwards casement should be closed to prevent the damage of the sash caused by high wind and heavy rain.