It is suitable for rolling reinforcement on large-sized long profiles and round sheets, as well as pressing ribs at the seaming position. It is ideal for reinforcing rectangular sheets, Pittsburgh seams of air ducts, and Pressburg butt connections of flat round barrels. Customers can choose round or seaming beading dies. Custom models are also available based on actual requirements, including working width, sheet thickness, Pittsburgh seam strength, beading function, and duct connection type.