Window Grille In the window frame may be smaller sized sections of window that go below distinct terms but collectively called grillework. Older, solitary-pane windows might have accurate mullions, by which panes are separated by wood. The expression "sash windows" is utilized interchangeably Using the phrase "box sash windows" in the https://evansu999ncq7.blogsvirals.com/35108139/not-known-factual-statements-about-sash-windows