B – sash cord. Every single sash is linked to a sash cord that's connected to the facet on the sash and fed through a pulley. The sash twine is then connected to the direct sash bodyweight inside the sash box, which isn't noticeable till the window is disassembled, and the sash https://kaws37887.spintheblog.com/35944016/5-simple-techniques-for-sash-window-draught-proofing