近来,在多数金属,特别是铜、金和银的价格有明显上升的同时,大多数公司和整个工业的经济状况也有了明显的改善。其主要原因是对该工业部门进行了大调整和重新组建。关闭了许多厂矿,并转向着重对贵金属,能源进行勘探和投资以及选择新的工业 Recently, while the prices of most metals, especially copper, gold and silver, have risen markedly, the economic conditions in most companies and the industry as a whole have also been markedly improved. The main reason is that the industrial sector has been greatly adjusted and reorganized. Closed many factories and mines, and turned to focus on the exploration and investment of precious metals, energy and the selection of new industries