In magnetic separation practice, the ore is divided into strong magnetic minerals, weak magnetic minerals and the nonmagnetic minerals according to the size of specific susceptibility. weak magnetic minerals: This kind of ore belongs to the ferrous magnetic material, such as magnetite, magnetic pyrite, hematite and magnetic zinc, iron spinal, etc. This kind of ore […]
When incentives for businesses make sense that economic forecasts have been revised once again in the last few days down. Each 5 company in Germany has already introduced short-time working. A wave of layoffs is threatening for the summer. It is not something Thomas J. Wilson would like to discuss. There, the question of how […]
Well Finally, you'll spend much more time (though you can always take advantage of state-owned blocks, so that you have and reduce the risks). The third way – investing in precious metals and stones. Income in the case of buying the physical metal you can not get at all. And still pay 18% income tax […]