C – Parting bead. There's two parting beads positioned on both sides in the sash box, jogging vertically from major to bottom in between the sashes. Every single 50 percent area of the Ventrolla parting bead has a draught-proofing procedure that faces the adjacent sash, forming a cosy weather seal.  In case you’re unsure https://richardy899qoj1.vblogetin.com/profile