1)Alloy:1070 2)Brinell hardness:H16-23 3)Surface:Smooth,Tumbled,Blasted 4)flat or concave with or without hole 1)Alloy:10702)Brinell hardness:H16-233)Surface:Smooth,Tumbled,Blasted4)Usage:for producing collapsible aluminium tubes , aerosol cans5)Packing:ctn+pallet 1070 Aluminium slug with pierced hole