Aluminum sheets and aluminum strips are both flat aluminum products, but they differ in width and thickness. Aluminum sheets are wider and can range from 0.2mm to 500mm in thickness, suitable for applications requiring broad surfaces like construction and packaging. Aluminum strips, on the other hand, are narrower and typically used in applications that require thin, elongated pieces, such as in electrical conduits or mechanical parts. The production processes may also vary, with sheets often being rolled and strips being extruded or rolled as well, depending on the specific application and desired properties.