After extensive use of river sand we have s, mechanism of sand now boarded the stage of building materials. Some sand-excavating boat and suction sand machine work day and night, serious damage to the river’s lake ecological environment, for the water biology is a devastating blow. And now for the strength requirement is very high,…

Jaw crusher in the process of work, high moisture content of ore material into the crushing chamber, crusher material containing a water broken into small pieces, into small pieces of material has certain viscosity, adhesion together, and plugging in the crushing cavity between two pieces of jaw, card material phenomenon;Also may be broken material is…