... & Aluminium Alloy Welding Wires Typical composition %Si<0.20%Fe<0.25%Cu<0.04%Mn<0.03%Mg<0.03%Ti<0.03%Zn<0.04ClassificationGB/T ... .8,0.9,1.0,1.2,1.6,2.0,2.4mmTIG-Rods1.6,2.0,2.4,3.2,4.0,5.0,6 ... power, chemistry, foodetc.2. Choose the welding wire according to the base metal Choose the welding wire according to the base metal base metal70036061 ...