... alloy has more Cu,Mn,Mg,Zn than 1 series aluminum alloy.The mainly usage of this materials are room ... partition, baffle, movable house board, sheet metal forming, bottle cap, etc.. 3105 aluminium alloy usages: room partition, baffle, movable ... board, sheet metal forming, bottle cap ,mobile phone cover, electronic battery cover. Specification of 3105 aluminum plates:Thickness:6 mm -600mmWidth ...