... 3.alloy 1100,3003,3005.3105 etc 4.top quality,best price aluminum perforated sheet 30031. Description Product aluminum sheetThickness 0.1mm-10mmPopular ... sheet characteristic Perforated aluminum sheet is produced by punching, notching, rolling, leveling, bending, slitting, forming, stamping etc. 1. high precision, small error and good quality ...