The sash are installed in a normal position, and then the upper beam of the inner frame is painted. At the last stage of the work, all the unpainted parts of vertical bars are processed. Lower the outer frame and paint all the remaining sections.
The sash are installed in a normal position, and then the upper beam of the inner frame is painted. At the last stage of the work, all the unpainted parts of vertical bars are processed. Lower the outer frame and paint all the remaining sections.
