Chemistry composition:Gu:0.20 Mg:0.05 Mn:1.0-1.6 Fe:0.7 Si:0.6 Zn:0.1 Standards:4.7*6.5,6*6.5,6.35*6,6.5*6,6.5*7.5,7.5*6.5,8*6.5,9*11.5,9.2*6.5,9.2*12,9.4*11.5,9.45*11.5,9.5*5,9.5*11.5,9.5*10,9.7*12.5,9.8*8.5,10*8,10*13,10.3*10,10.3*11.5,10.5*6.5,10.5*11.5,11.3*6.5,11.3*12,11.3*18,11.5*5,12*12,15*11.5,15*16.5....