CHAL Aluminium Corporation provides two kinds of the aluminium composite tube which produced by different equipment and manufacturing technique.
One is high frequency welded composite tube. This kind composite tube adopts high-frequency welding technology, by welding the clad aluminium sheet into a composite aluminium tube. The other one is an extruded seamless tube. There are two extruded tubes with different diameters and using different alloys. The small one is made of 3003 or 6063 aluminium alloy, and the bigger one is made of 4343 or 4045 alloys, and then insert the small tube into the bigger tube. Two kinds of alloy tubes are tightly and uniformly combined with cold drawing.
