aluminum U channel extrusions are ideal for window construction and also suitable for electronics, electromechanical, automotive, furnishings, and residential construction industries. Made from 1050, 1070, 3103, and 6060 alloys, they can be produced in very small sizes with standard dimensional tolerances of +/- 0.15 mm, customizable upon request. The minimum order quantity is 200 kg, with delivery guaranteed within two weeks.