... according to the standard GB/T 1179-2008 the aluminum conductor; AAc Cable, All Aluminum Conductor Detailed Product DescriptionIEC61089,BS215,ASTM232,CASC 49,DIN48204,JIS ... are an indication of relative conductor flexibility, AA being the least flexible, C the most flexible.ConstructionAluminum alloy 1350-H19 wires, concentrically ...