Sand making, playing with sand ,making cement with sand. Every time the author thinks of sand, he thinks of the sea shore, feeling relaxed. 



 In the industrial area, big stone and waste coal slag ash and so on can be turned into  sand by sand making machines.

With the sand making machine we protect the envrionment. Because the solid waste takes up too much place and  it contaminates the soil and drinking water. When the waste is used to make sand, the waste can be turned into component of cement as construction material.


 If we get the waste, with the machine, we get the money.

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