What is the occupation of exterior wall sandblasting?

Sand blasting is a special type of work, because sand blasting is polluted and contains a small amount of poison, which will cause sparse lung disease when it enters people's bodies. Workers can only work if they are well protected at work.

The process of cleaning and roughening the substrate surface by the impact of high-speed sand flow. Using compressed air as power, a high-speed jet beam is formed, and the spraying material is sprayed to the surface of the workpiece to be treated at high speed, so that the appearance or shape of the outer surface of the workpiece surface changes.