Aluminium alloy strip is narrow aluminum coil with small thickness, therefore it can be called as aluminum tape, aluminum coil strip, aluminum foil strip, aluminum foil tape and so on. The raw material of the aluminum strip is pure aluminum or aluminum alloy, cast rolled aluminum coil and hot rolled aluminum coil, and through cold rolling mill rolled into thin aluminum coils of different thicknesses, and then slit into different widths longitudinally by a slitting machine according to the purpose.