... 3,aluminum holder 4,bended aluminum extrusion bended aluminum bar bended aluminum extrusion1,Material:mainly in 6000 grade,Such ... CNC machining…3,Surface treatments: mill finished,anodizing,electroplating,powder coating,electrophoresis.4,Meet the China national standard GB ... and Erope standard EN12020-1,2(2001) and american standard AAMA611-98.5,OEM. bended and punched aluminum bar,flat aluminum bar, ...