Show our copper supremacy according to a recent study made by the department of commerce it Is expected the united states will be the leading copper producing nation for many years to some says bays the manufacturer north america as a whole produced almost 66 per cent of the entire worlds copper supply in the first quarter of this century and 61 per cent in 1926 27 foreign production of the metal Is slowly increasing but our supremacy Is assured by the fact that we have reserve deposits of proven ore as well as tremendous deposits of low grade ore which will eventually be ba valuable the survey shows that the copper situation throughout the world Is batis balls factory and in the united states Is unusually encouraging this Indu economic and scientific progress of recent years year has followed the tremendous demand for the metal caused by our general industrial expansion |