Gold ore whose types of deposits are diverse and complex is the mineral assemblage of gold. With features of chalcophile affinity and high melting point, the gold ore includes conglomerate type, porphyry type, quartz vein type and volcanic rock type, etc.
Cement grinding plant is the final stage in the production of cement, which is separated from the finished cement production units. It mixes cement clinker with other certain amount of mixed materials for grinding, and then produces the finished cement.
Basalt with the color of black, dark gray and dark brown is a common basic volcanic rock mineral. With advantages of good corrosion resistance, compression resistance and oxidation resistance, basalt is widely used in roads, railways, construction, buildi