Aluminum and its alloys are today considered one of the most practical of metals. Its low cost,light-weight, and modern appearance are among the primary reasons for its widespread use. It is non-sparking, electrically conductive, thermally conductive, non-magnetic, reflective, and chemically resistant. Strong plasticity, suitable for a variety of working environments. As your requested, we can provide square tube, round tube, pattern tube, special-shaped tube, global aluminum tube.and all kinds of thickness standard.