species SYMBOL Chemical Ingredient (%) Reference KSD6008(1983) Alloy division Degree of purity division Cu Si Mg Zn Fe Mn Ni Ti Pb Sn Cr Al 1species A 1 AC1A.1 4.0 ~5.0 1.2 below 0.20 below 0.30 below 0.40 below 0.30 below 0.05 below 0.25 below 0.05 below 0.05 below 0.05 below rest AC1A 2 AC1A.2 4.0 ~5.0 1.2 below 0.20 below (0.03 below) 0.30 below (0.03 below) (0.03 below) 0.25 below (0.03 below) (0.03 below) (0.03 below) rest 1species B 1 AC1B.1 4.2 ~5.0 0.20 below 0.20 ~0.35 0.10 below 0.30 below 0.10 below 0.05 below 0.05 ~0.30 0.05 below 0.05 below 0.05 below rest AC1B 2...