bended aluminum flat bar 1,aluminum bracket 2,aluminum tube rack 3,aluminum holder 4,bended aluminum extrusion bended aluminum bar bended aluminum extrusion1,Material:mainly in 6000 grade,Such ... standard GB/T6892-2006 and Erope standard EN12020-1,2(2001) and american standard AAMA611-98.5,OEM. bended and punched aluminum bar,flat aluminum bar,aluminum bracket