... : Industry, etching, photoengraving, stamping, printing,embossing1) AZ31BAl: 2.5-3.5%, Mn: 0.2-1.0%, Zn: 0.6-1.4 ... Mg: remainderUsage: CNC engraving or etching engraving, computer, mobile, electronic product, etc.2) AZ61AAl: 5.8-7.2%, Mn: 0.15-0 ... uses including aerospace, aircraft, concrete tools, 3C (cell phone / camera / computer), speaker cones and textile machinery can all benefit from light weight ...