As a pure natural stone with high usage value, river gravel is formed in the long-term impact, squeeze and friction function. River gravel generally shows the color of black, white, yellow, red, green gray, etc.
Basalt is the best material for repairing roads, railways and airfield runways. It has the advantages of abrasion resistance, less water consumption, poor conductivity, strong compressive strength, low crushing value, strong corrosion resistance and asp
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.