We are in a position to offer black copper ingots of African origin having following chemical analys
We are in a position to offer black copper ingots of African origin having following chemical analysis. Interested buyer may write for Detail s. Analysis of black copper Cu 94. 00% Co 0. 30% Fe 3. 50% AL nd Ca 1. 05% Cd <0. 001% Cr 0. 02% Mg 0. 25% Mn 0. 02% Ni 0. 10% Pb 0. 10% Zn 0. 10% As 0. 10%
