... 2000 sreies~~~Al-Cu Alloy5000 series~~~Al-Mg Alloy6000 series~~~Al-Mg-Si Alloy7000 series~~~Al-Zn-Mg Alloy These models ... are widely used in electronic, instrument, medical, spinning machine, aviation, shipping, machinery industries and ... anodized4.Anodized Colour: silver, red, black, blue, and so on.5.Technique procedures: die casting ,make mould ...