Maofeng copper cathode

We are offering copper cathode.chemical composition
elements value (%) elements value (%)
copper (min %) 99.99 silica (si/ppm) 0.3
iron (fe/ppm) 2 cobalt (co/ppm) 0.2
sulphur (s/ppm) 4 arsenic (as/ppm) 0.1
oxygen (o2/ppm) nil bismuth (bi/ppm) 0.1
argent (ag/ppm) 10 manganese (mn/ppm) 0.1
lead (pb/ppm) 0.2 tellurium (te/ppm) 0.05
nickel (ni/ppm) 0.2 aluminium (al/ppm) 0.5
selenium (se/ppm) 0.3 magnesium (mg/ppm) 0.4.