Linux kernel newbies em português

In recent years, using coal as fuel for thermal power plant and the city central heating boiler has produced more and more fly ash. The fly ash not only causes environmental pollution, but also a waste of resources. Fly ash can be used to make cement clinker, used ball mill south africa baked brick, aerated concrete and hollow brick for the construction of roads and dams. In addition, the floating beads, microbeads, powdered iron, carbon and aluminum can be selected from fly ash to make other materials.