2017 Having 99.9999% purity cathode copper sheet supplier with best service and professional enginee
99%;Li, Be, B, Na, Mg, AL, Si, P, S, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, zinc, Ge, As, Se, Zr, Nb, Mo, Ag, Cd, Sn, Sb, Te, Au, Hg, Pb, Bi, Th, U master impurity element content is not greater than the sum of 0.001%.